--- ../src-base/minecraft/net/minecraft/entity/ai/EntityAISit.java
+++ ../src-work/minecraft/net/minecraft/entity/ai/EntityAISit.java
@@ -19,7 +19,7 @@
     {
         if (!this.theEntity.isTamed())
         {
-            return false;
+            return this.isSitting && this.theEntity.getAttackTarget() == null; // CraftBukkit - Allow sitting for wild animals
         }
         else if (this.theEntity.isInWater())
         {