--- ../src-base/minecraft/net/minecraft/entity/passive/EntityCow.java
+++ ../src-work/minecraft/net/minecraft/entity/passive/EntityCow.java
@@ -17,6 +17,11 @@
 import net.minecraft.item.ItemStack;
 import net.minecraft.world.World;
 
+// CraftBukkit start
+import org.bukkit.craftbukkit.event.CraftEventFactory;
+import org.bukkit.craftbukkit.inventory.CraftItemStack;
+// CraftBukkit end
+
 public class EntityCow extends EntityAnimal
 {
     private static final String __OBFID = "CL_00001640";
@@ -109,15 +114,25 @@
 
         if (itemstack != null && itemstack.getItem() == Items.bucket && !p_70085_1_.capabilities.isCreativeMode)
         {
+            // CraftBukkit start - Got milk?
+            org.bukkit.Location loc = this.getBukkitEntity().getLocation();
+            org.bukkit.event.player.PlayerBucketFillEvent event = CraftEventFactory.callPlayerBucketFillEvent(p_70085_1_, loc.getBlockX(), loc.getBlockY(), loc.getBlockZ(), -1, itemstack, Items.milk_bucket);
+
+            if (event.isCancelled())
+            {
+                return false;
+            }
+
             if (itemstack.stackSize-- == 1)
             {
-                p_70085_1_.inventory.setInventorySlotContents(p_70085_1_.inventory.currentItem, new ItemStack(Items.milk_bucket));
+                p_70085_1_.inventory.setInventorySlotContents(p_70085_1_.inventory.currentItem, CraftItemStack.asNMSCopy(event.getItemStack()));
             }
             else if (!p_70085_1_.inventory.addItemStackToInventory(new ItemStack(Items.milk_bucket)))
             {
-                p_70085_1_.dropPlayerItemWithRandomChoice(new ItemStack(Items.milk_bucket, 1, 0), false);
+                p_70085_1_.dropPlayerItemWithRandomChoice(CraftItemStack.asNMSCopy(event.getItemStack()), false);
             }
 
+            // CraftBukkit end
             return true;
         }
         else
