diff --git a/src/main/java/li/cil/oc/api/API.java b/src/main/java/li/cil/oc/api/API.java
index 1b0e5ad0e..733b13bb7 100644
--- a/src/main/java/li/cil/oc/api/API.java
+++ b/src/main/java/li/cil/oc/api/API.java
@@ -12,7 +12,7 @@ import li.cil.oc.api.detail.*;
  */
 public class API {
     public static final String ID_OWNER = "OpenComputers|Core";
-    public static final String VERSION = "5.5.6";
+    public static final String VERSION = "5.6.0";
 
     public static DriverAPI driver = null;
     public static FileSystemAPI fileSystem = null;
diff --git a/src/main/java/li/cil/oc/api/nanomachines/Behavior.java b/src/main/java/li/cil/oc/api/nanomachines/Behavior.java
index 38299b538..b532e253f 100644
--- a/src/main/java/li/cil/oc/api/nanomachines/Behavior.java
+++ b/src/main/java/li/cil/oc/api/nanomachines/Behavior.java
@@ -40,8 +40,10 @@ public interface Behavior {
      * Called when this behavior becomes inactive.
      * <p/>
      * Use this to remove permanent effects.
+     *
+     * @param reason the reason the behavior is being disabled.
      */
-    void onDisable();
+    void onDisable(DisableReason reason);
 
     /**
      * Called each tick while this behavior is active.
diff --git a/src/main/java/li/cil/oc/api/nanomachines/DisableReason.java b/src/main/java/li/cil/oc/api/nanomachines/DisableReason.java
new file mode 100644
index 000000000..13d806e36
--- /dev/null
+++ b/src/main/java/li/cil/oc/api/nanomachines/DisableReason.java
@@ -0,0 +1,23 @@
+package li.cil.oc.api.nanomachines;
+
+/**
+ * Enum with reasons why a nanomachine behavior was disabled.
+ * <p/>
+ * This allows some more context specific behavior in a more stable fashion.
+ */
+public enum DisableReason {
+    /**
+     * This covers things like players logging off or the controller being reset.
+     */
+    Default,
+
+    /**
+     * Input state changed, leading to a behavior being disabled.
+     */
+    InputChanged,
+
+    /**
+     * System has run out of energy and is powering down.
+     */
+    OutOfEnergy
+}
diff --git a/src/main/java/li/cil/oc/api/prefab/AbstractBehavior.java b/src/main/java/li/cil/oc/api/prefab/AbstractBehavior.java
index a1d0ed199..ea1ad4bb9 100644
--- a/src/main/java/li/cil/oc/api/prefab/AbstractBehavior.java
+++ b/src/main/java/li/cil/oc/api/prefab/AbstractBehavior.java
@@ -1,6 +1,7 @@
 package li.cil.oc.api.prefab;
 
 import li.cil.oc.api.nanomachines.Behavior;
+import li.cil.oc.api.nanomachines.DisableReason;
 import net.minecraft.entity.player.EntityPlayer;
 
 /**
@@ -42,7 +43,7 @@ public abstract class AbstractBehavior implements Behavior {
     }
 
     @Override
-    public void onDisable() {
+    public void onDisable(DisableReason reason) {
     }
 
     @Override
diff --git a/src/main/resources/application.conf b/src/main/resources/application.conf
index d95a00f06..ae36f0b62 100644
--- a/src/main/resources/application.conf
+++ b/src/main/resources/application.conf
@@ -1036,7 +1036,6 @@ opencomputers {
       "potion.fireResistance",
       "potion.waterBreathing",
       "potion.nightVision",
-      "potion.healthBoost",
       "potion.absorption",
 
       "potion.blindness",
@@ -1049,6 +1048,14 @@ opencomputers {
       "potion.weakness",
       "potion.wither"
     ]
+
+    # How much damage the hungry behavior should deal to the player when the
+    # nanomachine controller runs out of energy.
+    hungryDamage: 5
+
+    # How much energy the hungry behavior should restore when damaging the
+    # player.
+    hungryEnergyRestored: 50
   }
 
   # 3D printer related stuff.
diff --git a/src/main/resources/assets/opencomputers/lang/en_US.lang b/src/main/resources/assets/opencomputers/lang/en_US.lang
index 64a6b2164..866a1153f 100644
--- a/src/main/resources/assets/opencomputers/lang/en_US.lang
+++ b/src/main/resources/assets/opencomputers/lang/en_US.lang
@@ -451,6 +451,15 @@ achievement.oc.transistor.desc=Create a Transistor to get started. Then listen t
 achievement.oc.wirelessNetworkCard=Signals
 achievement.oc.wirelessNetworkCard.desc=Time to go where no packet has gone before.
 
+# Death messages. Note that the number of entries here must match the number
+# set in the actual damage source in code.
+death.attack.oc.nanomachinesOverload.1=%s got too greedy.
+death.attack.oc.nanomachinesOverload.2=%s had a nervous breakdown.
+death.attack.oc.nanomachinesOverload.3=%s's nanomachines went out of control.
+death.attack.oc.nanomachinesHungry.1=%s was eaten by nanomachines.
+death.attack.oc.nanomachinesHungry.2=%s didn't keep their nanomachines fed.
+death.attack.oc.nanomachinesHungry.3=%s has been digested.
+
 # NEI Integration
 nei.options.inventory.oredict=Show OreDictionary names
 nei.options.inventory.oredict.true=True
diff --git a/src/main/scala/li/cil/oc/Settings.scala b/src/main/scala/li/cil/oc/Settings.scala
index 648dcfaf5..84382f665 100644
--- a/src/main/scala/li/cil/oc/Settings.scala
+++ b/src/main/scala/li/cil/oc/Settings.scala
@@ -360,6 +360,8 @@ class Settings(val config: Config) {
   val nanomachineDisintegrationRange = config.getInt("nanomachines.disintegrationRange") max 0
   val nanomachinePotionBlacklist = config.getAnyRefList("nanomachines.potionBlacklist")
   val nanomachinePotionWhitelist = config.getAnyRefList("nanomachines.potionWhitelist")
+  val nanomachinesHungryDamage = config.getDouble("nanomachines.hungryDamage").toFloat max 0
+  val nanomachinesHungryEnergyRestored = config.getDouble("nanomachines.hungryEnergyRestored") max 0
 
   // ----------------------------------------------------------------------- //
   // printer
diff --git a/src/main/scala/li/cil/oc/common/nanomachines/ControllerImpl.scala b/src/main/scala/li/cil/oc/common/nanomachines/ControllerImpl.scala
index 695a3ecbd..0743c05e6 100644
--- a/src/main/scala/li/cil/oc/common/nanomachines/ControllerImpl.scala
+++ b/src/main/scala/li/cil/oc/common/nanomachines/ControllerImpl.scala
@@ -9,8 +9,10 @@ import li.cil.oc.Settings
 import li.cil.oc.api
 import li.cil.oc.api.nanomachines.Behavior
 import li.cil.oc.api.nanomachines.Controller
+import li.cil.oc.api.nanomachines.DisableReason
 import li.cil.oc.api.network.Packet
 import li.cil.oc.api.network.WirelessEndpoint
+import li.cil.oc.integration.util.DamageSourceWithRandomCause
 import li.cil.oc.server.PacketSender
 import li.cil.oc.util.BlockPosition
 import li.cil.oc.util.ExtendedNBT._
@@ -32,6 +34,10 @@ class ControllerImpl(val player: EntityPlayer) extends Controller with WirelessE
   final val MaxSenderDistance = 2f
   final val FullSyncInterval = 20 * 60
 
+  final val OverloadDamage = new DamageSourceWithRandomCause("oc.nanomachinesOverload", 3).
+    setDamageBypassesArmor().
+    setDamageIsAbsolute()
+
   var uuid = UUID.randomUUID.toString
   var responsePort = 0
   var storedEnergy = Settings.get.bufferNanomachines * 0.25
@@ -154,7 +160,7 @@ class ControllerImpl(val player: EntityPlayer) extends Controller with WirelessE
   }
 
   override def getActiveBehaviors: lang.Iterable[Behavior] = configuration.synchronized {
-    cleanActiveBehaviors()
+    cleanActiveBehaviors(DisableReason.InputChanged)
     activeBehaviors
   }
 
@@ -192,12 +198,15 @@ class ControllerImpl(val player: EntityPlayer) extends Controller with WirelessE
       return
     }
 
-    val hasPower = getLocalBuffer > 0 || Settings.get.ignorePower
+    var hasPower = getLocalBuffer > 0 || Settings.get.ignorePower
     lazy val active = getActiveBehaviors.toIterable // Wrap once.
     lazy val activeInputs = configuration.triggers.count(_.isActive)
 
     if (hasPower != hadPower) {
-      if (!hasPower) active.foreach(_.onDisable())
+      if (!hasPower) {
+        active.foreach(_.onDisable(DisableReason.OutOfEnergy)) // This may change our energy buffer.
+        hasPower = getLocalBuffer > 0 || Settings.get.ignorePower
+      }
       else active.foreach(_.onEnable())
     }
 
@@ -212,8 +221,7 @@ class ControllerImpl(val player: EntityPlayer) extends Controller with WirelessE
 
         val overload = activeInputs - getSafeInputCount
         if (!player.capabilities.isCreativeMode && overload > 0 && player.getEntityWorld.getTotalWorldTime % 20 == 0) {
-          player.setHealth(player.getHealth - overload)
-          player.performHurtAnimation()
+          player.attackEntityFrom(OverloadDamage, overload)
         }
       }
 
@@ -249,7 +257,7 @@ class ControllerImpl(val player: EntityPlayer) extends Controller with WirelessE
         configuration.triggers(index).isActive = false
         activeBehaviorsDirty = true
       }
-      cleanActiveBehaviors()
+      cleanActiveBehaviors(DisableReason.Default)
     }
   }
 
@@ -283,7 +291,7 @@ class ControllerImpl(val player: EntityPlayer) extends Controller with WirelessE
 
   private def isServer = !isClient
 
-  private def cleanActiveBehaviors(): Unit = {
+  private def cleanActiveBehaviors(reason: DisableReason): Unit = {
     if (activeBehaviorsDirty) {
       configuration.synchronized(if (activeBehaviorsDirty) {
         val newBehaviors = configuration.behaviors.filter(_.isActive).map(_.behavior)
@@ -293,7 +301,7 @@ class ControllerImpl(val player: EntityPlayer) extends Controller with WirelessE
         activeBehaviors ++= newBehaviors
         activeBehaviorsDirty = false
         addedBehaviors.foreach(_.onEnable())
-        removedBehaviors.foreach(_.onDisable())
+        removedBehaviors.foreach(_.onDisable(reason))
 
         if (isServer) {
           PacketSender.sendNanomachineInputs(player)
diff --git a/src/main/scala/li/cil/oc/common/nanomachines/NeuralNetwork.scala b/src/main/scala/li/cil/oc/common/nanomachines/NeuralNetwork.scala
index 6d1503e1c..3731e418f 100644
--- a/src/main/scala/li/cil/oc/common/nanomachines/NeuralNetwork.scala
+++ b/src/main/scala/li/cil/oc/common/nanomachines/NeuralNetwork.scala
@@ -55,8 +55,8 @@ class NeuralNetwork(controller: ControllerImpl) extends Persistable {
     val rng = new Random(controller.player.getEntityWorld.rand.nextInt())
 
     def connect[Sink <: ConnectorNeuron, Source <: Neuron](sinks: Iterable[Sink], sources: mutable.ArrayBuffer[Source]): Unit = {
-      val sinkPool = sinks.toBuffer
-      rng.shuffle(sinkPool)
+      // Shuffle sink list to give each entry the same chance.
+      val sinkPool = rng.shuffle(sinks.toBuffer)
       for (sink <- sinkPool if sources.nonEmpty) {
         for (n <- 0 to rng.nextInt(Settings.get.nanomachineMaxInputs) if sources.nonEmpty) {
           val sourceIndex = rng.nextInt(sources.length)
@@ -65,10 +65,6 @@ class NeuralNetwork(controller: ControllerImpl) extends Persistable {
       }
     }
 
-    // Shuffle behavior and connector list to give each entry the same chance.
-    rng.shuffle(connectors)
-    rng.shuffle(behaviors)
-
     // Connect connectors to triggers, then behaviors to connectors and/or remaining triggers.
     val sourcePool = mutable.ArrayBuffer.fill(Settings.get.nanomachineMaxOutputs)(triggers.map(_.asInstanceOf[Neuron])).flatten
     connect(connectors, sourcePool)
diff --git a/src/main/scala/li/cil/oc/common/nanomachines/provider/DisintegrationProvider.scala b/src/main/scala/li/cil/oc/common/nanomachines/provider/DisintegrationProvider.scala
index 31043d234..d56d5fb2b 100644
--- a/src/main/scala/li/cil/oc/common/nanomachines/provider/DisintegrationProvider.scala
+++ b/src/main/scala/li/cil/oc/common/nanomachines/provider/DisintegrationProvider.scala
@@ -3,6 +3,7 @@ package li.cil.oc.common.nanomachines.provider
 import cpw.mods.fml.common.eventhandler.Event
 import li.cil.oc.Settings
 import li.cil.oc.api
+import li.cil.oc.api.nanomachines.DisableReason
 import li.cil.oc.api.prefab.AbstractBehavior
 import li.cil.oc.util.BlockPosition
 import li.cil.oc.util.ExtendedWorld._
@@ -28,7 +29,7 @@ object DisintegrationProvider extends ScalaProvider("c4e7e3c2-8069-4fbb-b08e-74b
 
     // Note: intentionally not overriding getNameHint. Gotta find this one manually!
 
-    override def onDisable(): Unit = {
+    override def onDisable(reason: DisableReason): Unit = {
       val world = player.getEntityWorld
       for (pos <- breakingMap.keys) {
         world.destroyBlockInWorldPartially(pos.hashCode(), pos, -1)
diff --git a/src/main/scala/li/cil/oc/common/nanomachines/provider/HungryProvider.scala b/src/main/scala/li/cil/oc/common/nanomachines/provider/HungryProvider.scala
new file mode 100644
index 000000000..bf7d52b01
--- /dev/null
+++ b/src/main/scala/li/cil/oc/common/nanomachines/provider/HungryProvider.scala
@@ -0,0 +1,32 @@
+package li.cil.oc.common.nanomachines.provider
+
+import li.cil.oc.Settings
+import li.cil.oc.api
+import li.cil.oc.api.nanomachines.Behavior
+import li.cil.oc.api.nanomachines.DisableReason
+import li.cil.oc.api.prefab.AbstractBehavior
+import li.cil.oc.integration.util.DamageSourceWithRandomCause
+import net.minecraft.entity.player.EntityPlayer
+import net.minecraft.nbt.NBTTagCompound
+
+object HungryProvider extends ScalaProvider("") {
+  final val FillCount = 10 // Create a bunch of these to have a higher chance of one being picked / available.
+
+  final val HungryDamage = new DamageSourceWithRandomCause("oc.nanomachinesHungry", 3).
+    setDamageBypassesArmor().
+    setDamageIsAbsolute()
+
+  override def createScalaBehaviors(player: EntityPlayer): Iterable[Behavior] = Iterable.fill(FillCount)(new HungryBehavior(player))
+
+  override protected def readBehaviorFromNBT(player: EntityPlayer, nbt: NBTTagCompound): Behavior = new HungryBehavior(player)
+
+  class HungryBehavior(player: EntityPlayer) extends AbstractBehavior(player) {
+    override def onDisable(reason: DisableReason): Unit = {
+      if (reason == DisableReason.OutOfEnergy) {
+        player.attackEntityFrom(HungryDamage, Settings.get.nanomachinesHungryDamage)
+        api.Nanomachines.getController(player).changeBuffer(Settings.get.nanomachinesHungryEnergyRestored)
+      }
+    }
+  }
+
+}
diff --git a/src/main/scala/li/cil/oc/common/nanomachines/provider/PotionProvider.scala b/src/main/scala/li/cil/oc/common/nanomachines/provider/PotionProvider.scala
index 45affc130..2b1667988 100644
--- a/src/main/scala/li/cil/oc/common/nanomachines/provider/PotionProvider.scala
+++ b/src/main/scala/li/cil/oc/common/nanomachines/provider/PotionProvider.scala
@@ -3,6 +3,7 @@ package li.cil.oc.common.nanomachines.provider
 import li.cil.oc.Settings
 import li.cil.oc.api
 import li.cil.oc.api.nanomachines.Behavior
+import li.cil.oc.api.nanomachines.DisableReason
 import li.cil.oc.api.prefab.AbstractBehavior
 import net.minecraft.entity.player.EntityPlayer
 import net.minecraft.nbt.NBTTagCompound
@@ -51,9 +52,7 @@ object PotionProvider extends ScalaProvider("c29e4eec-5a46-479a-9b3d-ad0f06da784
 
     override def getNameHint: String = potion.getName.stripPrefix("potion.")
 
-    override def onEnable(): Unit = {}
-
-    override def onDisable(): Unit = {
+    override def onDisable(reason: DisableReason): Unit = {
       player.removePotionEffect(potion.id)
     }
 
diff --git a/src/main/scala/li/cil/oc/integration/opencomputers/ModOpenComputers.scala b/src/main/scala/li/cil/oc/integration/opencomputers/ModOpenComputers.scala
index 6eadc5d2c..5efc6a024 100644
--- a/src/main/scala/li/cil/oc/integration/opencomputers/ModOpenComputers.scala
+++ b/src/main/scala/li/cil/oc/integration/opencomputers/ModOpenComputers.scala
@@ -29,6 +29,7 @@ import li.cil.oc.common.item.Delegator
 import li.cil.oc.common.item.RedstoneCard
 import li.cil.oc.common.item.Tablet
 import li.cil.oc.common.nanomachines.provider.DisintegrationProvider
+import li.cil.oc.common.nanomachines.provider.HungryProvider
 import li.cil.oc.common.nanomachines.provider.MagnetProvider
 import li.cil.oc.common.nanomachines.provider.ParticleProvider
 import li.cil.oc.common.nanomachines.provider.PotionProvider
@@ -253,6 +254,7 @@ object ModOpenComputers extends ModProxy {
     api.Manual.addTab(new ItemStackTabIconRenderer(api.Items.get("cpu1").createItemStack(1)), "oc:gui.Manual.Items", "%LANGUAGE%/item/index.md")
 
     api.Nanomachines.addProvider(DisintegrationProvider)
+    api.Nanomachines.addProvider(HungryProvider)
     api.Nanomachines.addProvider(ParticleProvider)
     api.Nanomachines.addProvider(PotionProvider)
     api.Nanomachines.addProvider(MagnetProvider)
diff --git a/src/main/scala/li/cil/oc/integration/util/DamageSourceWithRandomCause.scala b/src/main/scala/li/cil/oc/integration/util/DamageSourceWithRandomCause.scala
new file mode 100644
index 000000000..46349d70a
--- /dev/null
+++ b/src/main/scala/li/cil/oc/integration/util/DamageSourceWithRandomCause.scala
@@ -0,0 +1,19 @@
+package li.cil.oc.integration.util
+
+import net.minecraft.entity.EntityLivingBase
+import net.minecraft.util.ChatComponentTranslation
+import net.minecraft.util.DamageSource
+import net.minecraft.util.IChatComponent
+import net.minecraft.util.StatCollector
+
+class DamageSourceWithRandomCause(name: String, numCauses: Int) extends DamageSource(name) {
+  override def func_151519_b(damagee: EntityLivingBase): IChatComponent = {
+    val damager = damagee.func_94060_bK
+    val format = "death.attack." + damageType + "." + (damagee.worldObj.rand.nextInt(numCauses) + 1)
+    val withCauseFormat = format + ".player"
+    if (damager != null && StatCollector.canTranslate(withCauseFormat))
+      new ChatComponentTranslation(withCauseFormat, damagee.func_145748_c_, damager.func_145748_c_)
+    else
+      new ChatComponentTranslation(format, damagee.func_145748_c_)
+  }
+}