diff --git a/src/main/java/li/cil/oc/api/machine/MachineHost.java b/src/main/java/li/cil/oc/api/machine/MachineHost.java
index 67c7eae4a..d79124702 100644
--- a/src/main/java/li/cil/oc/api/machine/MachineHost.java
+++ b/src/main/java/li/cil/oc/api/machine/MachineHost.java
@@ -55,4 +55,13 @@ public interface MachineHost extends EnvironmentHost {
      * @param node the node that was disconnected from the network.
      */
     void onMachineDisconnect(Node node);
+
+    /** Helper method for printing the machine position in error messages and debug statements. */
+    default String machinePosition()
+    {
+        if (world() != null && world().provider != null)
+            return String.format("(%g, %g, %g, %d)", xPosition(), yPosition(), zPosition(), world().provider.getDimension());
+        else
+            return String.format("(%g, %g, %g)", xPosition(), yPosition(), zPosition());
+    }
 }
diff --git a/src/main/resources/assets/opencomputers/loot/openos/bin/sh.lua b/src/main/resources/assets/opencomputers/loot/openos/bin/sh.lua
index d4e4dd9db..de7a7b1c4 100644
--- a/src/main/resources/assets/opencomputers/loot/openos/bin/sh.lua
+++ b/src/main/resources/assets/opencomputers/loot/openos/bin/sh.lua
@@ -41,5 +41,5 @@ if #args == 0 then
   end
 else
   -- execute command.
-  return sh.execute(...)
+  return sh.execute(_ENV, ...)
 end
diff --git a/src/main/resources/assets/opencomputers/loot/openos/lib/core/full_shell.lua b/src/main/resources/assets/opencomputers/loot/openos/lib/core/full_shell.lua
index 2576b07ee..7c6701715 100644
--- a/src/main/resources/assets/opencomputers/loot/openos/lib/core/full_shell.lua
+++ b/src/main/resources/assets/opencomputers/loot/openos/lib/core/full_shell.lua
@@ -10,8 +10,8 @@ function shell.execute(command, env, ...)
   if not sh then
     return false, reason
   end
-  local proc = process.load(sh, nil, nil, command)
-  local result = table.pack(process.internal.continue(proc, env, command, ...))
+  local proc = process.load(sh, env, nil, command)
+  local result = table.pack(process.internal.continue(proc, command, ...))
   if result.n == 0 then return true end
   return table.unpack(result, 1, result.n)
 end
diff --git a/src/main/resources/assets/opencomputers/robot.names b/src/main/resources/assets/opencomputers/robot.names
index 3d862d926..d3e64e7bc 100644
--- a/src/main/resources/assets/opencomputers/robot.names
+++ b/src/main/resources/assets/opencomputers/robot.names
@@ -34,6 +34,7 @@ Claptrap           # Borderlands
 Codsworth          # Fallout 4
 Continuity         # Mona Lisa Overdrive
 Cortana            # Halo
+Crow               # Mystery Science Theater 3000
 Crypto             # Kodos
 Curiosity          # Mars Rover
 Daedalus           # Deus Ex
@@ -60,6 +61,7 @@ Ghost              # I, Robot quote "There have always been ghosts in the machin
 GLaDOS             # Portal
 Gipsy Danger       # Pacific Rim
 G.U.N.T.E.R.       # Lost in Space
+Gypsy              # Mystery Science Theater 3000
 HAL 9000           # Space Odyssey
 Harbinger          # Mass Effect
 Harkness           # Fallout 3
@@ -117,6 +119,7 @@ T-1000             # Terminator
 Tachikoma          # Ghost in the Shell
 TARA UH            # Perry Rhodan
 Terminator         # Terminator
+Tom Servo          # Mystery Science Theater 3000
 Rinzler            # Tron
 Twiki              # Buck Rodgers
 Uniblab            # The Jetsons
@@ -132,3 +135,4 @@ Wheatley           # Portal
 Wintermute         # Neuromancer
 Wobbo              # Contributor
 Yui-MHCP001        # AKA Yui (Mental Health Counseling Program 001) - Sword Art Online
+Zone of Endless    # Ace Combat series
diff --git a/src/main/scala/li/cil/oc/integration/appeng/NetworkControl.scala b/src/main/scala/li/cil/oc/integration/appeng/NetworkControl.scala
index b131af852..9ab47f3db 100644
--- a/src/main/scala/li/cil/oc/integration/appeng/NetworkControl.scala
+++ b/src/main/scala/li/cil/oc/integration/appeng/NetworkControl.scala
@@ -131,7 +131,7 @@ trait NetworkControl[AETile >: Null <: TileEntity with IActionHost with IGridHos
       case (key, value) => hash += key -> value
     }
     hash.update("isCraftable", Boolean.box(aeItem.isCraftable))
-    hash.update("size", Int.box(aeItem.getStackSize.toInt))
+    hash.update("size", Long.box(aeItem.getStackSize))
     hash
   }
 
diff --git a/src/main/scala/li/cil/oc/server/component/DiskDriveMountable.scala b/src/main/scala/li/cil/oc/server/component/DiskDriveMountable.scala
index fd6edaa7a..930df534f 100644
--- a/src/main/scala/li/cil/oc/server/component/DiskDriveMountable.scala
+++ b/src/main/scala/li/cil/oc/server/component/DiskDriveMountable.scala
@@ -83,6 +83,14 @@ class DiskDriveMountable(val rack: api.internal.Rack, val slot: Int) extends Abs
     else result(false)
   }
 
+  @Callback(doc = "function(): string -- Return the internal floppy disk address")
+  def media(context: Context, args: Arguments): Array[AnyRef] = {
+    if (filesystemNode.isEmpty)
+      result(Unit, "drive is empty")
+    else
+      result(filesystemNode.head.address)
+  }
+
   // ----------------------------------------------------------------------- //
   // Analyzable
 
diff --git a/src/main/scala/li/cil/oc/server/component/traits/InventoryWorldControl.scala b/src/main/scala/li/cil/oc/server/component/traits/InventoryWorldControl.scala
index c1c7f8efd..008e58aed 100644
--- a/src/main/scala/li/cil/oc/server/component/traits/InventoryWorldControl.scala
+++ b/src/main/scala/li/cil/oc/server/component/traits/InventoryWorldControl.scala
@@ -44,9 +44,9 @@ trait InventoryWorldControl extends InventoryAware with WorldAware with SideRest
     val stack = inventory.getStackInSlot(selectedSlot)
     if (!stack.isEmpty && stack.getCount > 0) {
       val blockPos = position.offset(facing)
-      InventoryUtils.inventoryAt(blockPos, facing.getOpposite) match {
-        case Some(inv) if mayInteract(blockPos, facing.getOpposite, inv) =>
-          if (!InventoryUtils.insertIntoInventory(stack, inv, count)) {
+      InventoryUtils.inventorySourceAt(blockPos, facing.getOpposite) match {
+        case Some(inv) if mayInteract(inv) =>
+          if (!InventoryUtils.insertIntoInventory(stack, inv.inventory, count)) {
             // Cannot drop into that inventory.
             return result(false, "inventory full")
           }
@@ -103,9 +103,9 @@ trait InventoryWorldControl extends InventoryAware with WorldAware with SideRest
     val count = args.optItemCount(1)
 
     val blockPos = position.offset(facing)
-    var extracted: Int = InventoryUtils.inventoryAt(blockPos, facing.getOpposite) match {
-      case Some(inventory) => mayInteract(blockPos, facing.getOpposite)
-        InventoryUtils.extractAnyFromInventory((is, sim) => InventoryUtils.insertIntoInventory(is, InventoryUtils.asItemHandler(this.inventory), slots = Option(insertionSlots), simulate = sim), inventory, count)
+    var extracted: Int = InventoryUtils.inventorySourceAt(blockPos, facing.getOpposite) match {
+      case Some(inventory) => mayInteract(inventory)
+        InventoryUtils.extractAnyFromInventory((is, sim) => InventoryUtils.insertIntoInventory(is, InventoryUtils.asItemHandler(this.inventory), slots = Option(insertionSlots), simulate = sim), inventory.inventory, count)
       case _ => 0
     }
     if (extracted <= 0) {
diff --git a/src/main/scala/li/cil/oc/server/component/traits/InventoryWorldControlMk2.scala b/src/main/scala/li/cil/oc/server/component/traits/InventoryWorldControlMk2.scala
index 5df2854a9..0e858c9f1 100644
--- a/src/main/scala/li/cil/oc/server/component/traits/InventoryWorldControlMk2.scala
+++ b/src/main/scala/li/cil/oc/server/component/traits/InventoryWorldControlMk2.scala
@@ -60,8 +60,8 @@ trait InventoryWorldControlMk2 extends InventoryAware with WorldAware with SideR
   }
 
   private def withInventory(blockPos: BlockPosition, fromSide: EnumFacing, f: IItemHandler => Array[AnyRef]) =
-    InventoryUtils.inventoryAt(blockPos, fromSide) match {
-      case Some(inventory) if mayInteract(blockPos, fromSide) => f(inventory)
+    InventoryUtils.inventorySourceAt(blockPos, fromSide) match {
+      case Some(inventory) if mayInteract(inventory) => f(inventory.inventory)
       case _ => result(Unit, "no inventory")
     }
 }
diff --git a/src/main/scala/li/cil/oc/server/component/traits/WorldAware.scala b/src/main/scala/li/cil/oc/server/component/traits/WorldAware.scala
index eaf94a5f4..b63dc7b0f 100644
--- a/src/main/scala/li/cil/oc/server/component/traits/WorldAware.scala
+++ b/src/main/scala/li/cil/oc/server/component/traits/WorldAware.scala
@@ -2,15 +2,14 @@ package li.cil.oc.server.component.traits
 
 import li.cil.oc.OpenComputers
 import li.cil.oc.Settings
-import li.cil.oc.util.BlockPosition
+import li.cil.oc.util.{BlockInventorySource, BlockPosition, EntityInventorySource, InventorySource}
 import li.cil.oc.util.ExtendedBlock._
 import li.cil.oc.util.ExtendedWorld._
 import net.minecraft.entity.Entity
 import net.minecraft.entity.EntityLivingBase
 import net.minecraft.entity.item.EntityMinecart
 import net.minecraft.entity.player.EntityPlayer
-import net.minecraft.util.EnumFacing
-import net.minecraft.util.EnumHand
+import net.minecraft.util.{EnumActionResult, EnumFacing, EnumHand}
 import net.minecraft.util.math.AxisAlignedBB
 import net.minecraft.world.WorldServer
 import net.minecraftforge.common.MinecraftForge
@@ -35,7 +34,7 @@ trait WorldAware {
     player
   }
 
-  def mayInteract(blockPos: BlockPosition, face: EnumFacing): Boolean = {
+  private def mayInteract(blockPos: BlockPosition, face: EnumFacing): Boolean = {
     try {
       val event = new PlayerInteractEvent.RightClickBlock(fakePlayer, EnumHand.MAIN_HAND, blockPos.toBlockPos, face, null)
       MinecraftForge.EVENT_BUS.post(event)
@@ -47,9 +46,25 @@ trait WorldAware {
     }
   }
 
-  def mayInteract(blockPos: BlockPosition, side: EnumFacing, inventory: IItemHandler): Boolean = mayInteract(blockPos, side) && (inventory match {
+  private def mayInteract(entity: Entity): Boolean = {
+    try {
+      val event = new PlayerInteractEvent.EntityInteract(fakePlayer, EnumHand.MAIN_HAND, entity)
+      MinecraftForge.EVENT_BUS.post(event)
+      !event.isCanceled
+    } catch {
+      case t: Throwable =>
+        OpenComputers.log.warn("Some event handler threw up while checking for permission to access an entity.", t)
+        true
+    }
+  }
+
+  def mayInteract(inv: InventorySource): Boolean = (inv.inventory match {
     case inv: InvWrapper if inv.getInv != null => inv.getInv.isUsableByPlayer(fakePlayer)
     case _ => true
+  }) && (inv match {
+    case inv: BlockInventorySource => mayInteract(inv.position, inv.side)
+    case inv: EntityInventorySource => mayInteract(inv.entity)
+    case _ => true
   })
 
   def entitiesInBounds[Type <: Entity](clazz: Class[Type], bounds: AxisAlignedBB) = {
diff --git a/src/main/scala/li/cil/oc/server/component/traits/WorldInventoryAnalytics.scala b/src/main/scala/li/cil/oc/server/component/traits/WorldInventoryAnalytics.scala
index ee46da2f1..d896e8fe8 100644
--- a/src/main/scala/li/cil/oc/server/component/traits/WorldInventoryAnalytics.scala
+++ b/src/main/scala/li/cil/oc/server/component/traits/WorldInventoryAnalytics.scala
@@ -6,13 +6,13 @@ import li.cil.oc.api.machine.Callback
 import li.cil.oc.api.machine.Context
 import li.cil.oc.api.prefab.ItemStackArrayValue
 import li.cil.oc.server.component.result
-import li.cil.oc.util.{BlockPosition, DatabaseAccess, InventoryUtils}
+import li.cil.oc.util.{BlockInventorySource, BlockPosition, DatabaseAccess, EntityInventorySource, InventorySource, InventoryUtils, StackOption}
 import li.cil.oc.util.ExtendedWorld._
 import li.cil.oc.util.ExtendedArguments._
 import net.minecraft.block.Block
-import li.cil.oc.util.StackOption
 import net.minecraft.item.ItemStack
 import net.minecraft.util.EnumFacing
+import net.minecraftforge.fml.common.registry.EntityRegistry
 import net.minecraftforge.items.IItemHandler
 import net.minecraftforge.oredict.OreDictionary
 
@@ -102,8 +102,12 @@ trait WorldInventoryAnalytics extends WorldAware with SideRestricted with Networ
       }
       case _ => None
     }
-    withInventory(facing, inventory => blockAt(position.offset(facing)) match {
-      case Some(block) => result(block.getRegistryName)
+    withInventorySource(facing, {
+      case BlockInventorySource(position, _, _) => blockAt(position) match {
+        case Some(block) => result(block.getRegistryName)
+        case _ => result(Unit, "Unknown")
+      }
+      case EntityInventorySource(entity, _, _) => result(EntityRegistry.getEntry(entity.getClass).getRegistryName)
       case _ => result(Unit, "Unknown")
     })
   }
@@ -122,9 +126,12 @@ trait WorldInventoryAnalytics extends WorldAware with SideRestricted with Networ
     withInventory(facing, inventory => store(inventory.getStackInSlot(args.checkSlot(inventory, 1))))
   }
 
-  private def withInventory(side: EnumFacing, f: IItemHandler => Array[AnyRef]) =
-    InventoryUtils.inventoryAt(position.offset(side), side.getOpposite) match {
-      case Some(inventory) if mayInteract(position.offset(side), side.getOpposite, inventory) => f(inventory)
+  private def withInventorySource(side: EnumFacing, f: InventorySource => Array[AnyRef]) =
+    InventoryUtils.inventorySourceAt(position.offset(side), side.getOpposite) match {
+      case Some(inventory) if mayInteract(inventory) => f(inventory)
       case _ => result(Unit, "no inventory")
     }
+
+  private def withInventory(side: EnumFacing, f: IItemHandler => Array[AnyRef]) =
+    withInventorySource(side, is => f(is.inventory))
 }
diff --git a/src/main/scala/li/cil/oc/server/machine/Machine.scala b/src/main/scala/li/cil/oc/server/machine/Machine.scala
index 40b707cc7..60cc85116 100644
--- a/src/main/scala/li/cil/oc/server/machine/Machine.scala
+++ b/src/main/scala/li/cil/oc/server/machine/Machine.scala
@@ -799,7 +799,7 @@ class Machine(val host: MachineHost) extends AbstractManagedEnvironment with mac
     catch {
       case t: Throwable =>
         OpenComputers.log.error(
-          s"""Unexpected error loading a state of computer at (${host.xPosition}, ${host.yPosition}, ${host.zPosition}). """ +
+          s"""Unexpected error loading a state of computer at ${host.machinePosition()}. """ +
             s"""State: ${state.headOption.fold("no state")(_.toString)}. Unless you're upgrading/downgrading across a major version, please report this! Thank you.""", t)
         close()
     }
@@ -882,7 +882,7 @@ class Machine(val host: MachineHost) extends AbstractManagedEnvironment with mac
     catch {
       case t: Throwable =>
         OpenComputers.log.error(
-          s"""Unexpected error saving a state of computer at (${host.xPosition}, ${host.yPosition}, ${host.zPosition}). """ +
+          s"""Unexpected error saving a state of computer at ${host.machinePosition()}. """ +
             s"""State: ${state.headOption.fold("no state")(_.toString)}. Unless you're upgrading/downgrading across a major version, please report this! Thank you.""", t)
     }
   })
diff --git a/src/main/scala/li/cil/oc/server/machine/luac/NativeLuaArchitecture.scala b/src/main/scala/li/cil/oc/server/machine/luac/NativeLuaArchitecture.scala
index f87d313d1..ed13eb4e3 100644
--- a/src/main/scala/li/cil/oc/server/machine/luac/NativeLuaArchitecture.scala
+++ b/src/main/scala/li/cil/oc/server/machine/luac/NativeLuaArchitecture.scala
@@ -376,7 +376,7 @@ abstract class NativeLuaArchitecture(val machine: api.machine.Machine) extends A
 
       try lua.gc(LuaState.GcAction.COLLECT, 0) catch {
         case t: Throwable =>
-          OpenComputers.log.warn(s"Error cleaning up loaded computer @ (${machine.host.xPosition}, ${machine.host.yPosition}, ${machine.host.zPosition}). This either means the server is badly overloaded or a user created an evil __gc method, accidentally or not.")
+          OpenComputers.log.warn(s"Error cleaning up loaded computer @ ${machine.host().machinePosition()}. This either means the server is badly overloaded or a user created an evil __gc method, accidentally or not.")
           machine.crash("error in garbage collector, most likely __gc method timed out")
       }
     } catch {
@@ -414,15 +414,15 @@ abstract class NativeLuaArchitecture(val machine: api.machine.Machine) extends A
 
       try lua.gc(LuaState.GcAction.COLLECT, 0) catch {
         case t: Throwable =>
-          OpenComputers.log.warn(s"Error cleaning up loaded computer @ (${machine.host.xPosition}, ${machine.host.yPosition}, ${machine.host.zPosition}). This either means the server is badly overloaded or a user created an evil __gc method, accidentally or not.")
+          OpenComputers.log.warn(s"Error cleaning up loaded computer @ ${machine.host().machinePosition()}. This either means the server is badly overloaded or a user created an evil __gc method, accidentally or not.")
           machine.crash("error in garbage collector, most likely __gc method timed out")
       }
     } catch {
       case e: LuaRuntimeException =>
-        OpenComputers.log.warn(s"Could not persist computer @ (${machine.host.xPosition}, ${machine.host.yPosition}, ${machine.host.zPosition}).\n${e.toString}" + (if (e.getLuaStackTrace.isEmpty) "" else "\tat " + e.getLuaStackTrace.mkString("\n\tat ")))
+        OpenComputers.log.warn(s"Could not persist computer @ ${machine.host().machinePosition()}.\n${e.toString}" + (if (e.getLuaStackTrace.isEmpty) "" else "\tat " + e.getLuaStackTrace.mkString("\n\tat ")))
         nbt.removeTag("state")
       case e: LuaGcMetamethodException =>
-        OpenComputers.log.warn(s"Could not persist computer @ (${machine.host.xPosition}, ${machine.host.yPosition}, ${machine.host.zPosition}).\n${e.toString}")
+        OpenComputers.log.warn(s"Could not persist computer @ ${machine.host().machinePosition()}.\n${e.toString}")
         nbt.removeTag("state")
     }
 
diff --git a/src/main/scala/li/cil/oc/util/InventoryUtils.scala b/src/main/scala/li/cil/oc/util/InventoryUtils.scala
index d01c7714d..92fddbcd1 100644
--- a/src/main/scala/li/cil/oc/util/InventoryUtils.scala
+++ b/src/main/scala/li/cil/oc/util/InventoryUtils.scala
@@ -40,33 +40,40 @@ object InventoryUtils {
       (!checkNBT || ItemStack.areItemStackTagsEqual(stackA, stackB))
 
   /**
-   * Retrieves an actual inventory implementation for a specified world coordinate.
-   * <br>
-   * This performs special handling for (double-)chests and also checks for
-   * mine carts with chests.
+   * Retrieves an actual inventory implementation for a specified world coordinate,
+   * complete with a reference to the source of said implementation.
    */
-  def inventoryAt(position: BlockPosition, side: EnumFacing): Option[IItemHandler] = position.world match {
+  def inventorySourceAt(position: BlockPosition, side: EnumFacing): Option[InventorySource] = position.world match {
     case Some(world) if world.blockExists(position) => world.getTileEntity(position) match {
-      case tile: TileEntity if tile.hasCapability(CapabilityItemHandler.ITEM_HANDLER_CAPABILITY, side) => Option(tile.getCapability(CapabilityItemHandler.ITEM_HANDLER_CAPABILITY, side))
-      case tile: IInventory => Option(asItemHandler(tile, side))
+      case tile: TileEntity if tile.hasCapability(CapabilityItemHandler.ITEM_HANDLER_CAPABILITY, side) => Option(BlockInventorySource(position, side, tile.getCapability(CapabilityItemHandler.ITEM_HANDLER_CAPABILITY, side)))
+      case tile: IInventory => Option(BlockInventorySource(position, side, asItemHandler(tile, side)))
       case _ => world.getEntitiesWithinAABB(classOf[Entity], position.bounds)
         .filter(e => !e.isDead && e.hasCapability(CapabilityItemHandler.ITEM_HANDLER_CAPABILITY, side))
-        .map(_.getCapability(CapabilityItemHandler.ITEM_HANDLER_CAPABILITY, side))
-        .find(_ != null)
+        .map(a => EntityInventorySource(a, side, a.getCapability(CapabilityItemHandler.ITEM_HANDLER_CAPABILITY, side)))
+        .find(a => a != null && a.inventory != null)
     }
     case _ => None
   }
 
-  def anyInventoryAt(position: BlockPosition): Option[IItemHandler] = {
+  /**
+   * Retrieves an actual inventory implementation for a specified world coordinate.
+   */
+  def inventoryAt(position: BlockPosition, side: EnumFacing): Option[IItemHandler] = inventorySourceAt(position, side)
+    .map(a => a.inventory)
+
+  def anyInventorySourceAt(position: BlockPosition): Option[InventorySource] = {
     for(side <- null :: EnumFacing.VALUES.toList) {
-      inventoryAt(position, side) match {
-        case inv: Some[IItemHandler] => return inv
+      inventorySourceAt(position, side) match {
+        case inv: Some[InventorySource] => return inv
         case _ =>
       }
     }
     None
   }
 
+  def anyInventoryAt(position: BlockPosition): Option[IItemHandler] = anyInventorySourceAt(position)
+    .map(a => a.inventory)
+
   /**
    * Inserts a stack into an inventory.
    * <br>
@@ -397,3 +404,10 @@ object InventoryUtils {
     case _ => null
   }
 }
+
+sealed trait InventorySource {
+  def side: EnumFacing
+  def inventory: IItemHandler
+}
+final case class BlockInventorySource(position: BlockPosition, side: EnumFacing, inventory: IItemHandler) extends InventorySource
+final case class EntityInventorySource(entity: Entity, side: EnumFacing, inventory: IItemHandler) extends InventorySource
\ No newline at end of file