From 726fc5818b238c910ad06a08aa07542cb48cab90 Mon Sep 17 00:00:00 2001
From: md_5 <md_5@live.com.au>
Date: Fri, 28 Jun 2013 19:52:54 +1000
Subject: [PATCH] Disallow Interaction With Self


diff --git a/src/main/java/net/minecraft/server/PlayerConnection.java b/src/main/java/net/minecraft/server/PlayerConnection.java
index c2a9878..6bfc289 100644
--- a/src/main/java/net/minecraft/server/PlayerConnection.java
+++ b/src/main/java/net/minecraft/server/PlayerConnection.java
@@ -1109,6 +1109,13 @@ public class PlayerConnection extends Connection {
 
         WorldServer worldserver = this.minecraftServer.getWorldServer(this.player.dimension);
         Entity entity = worldserver.getEntity(packet7useentity.target);
+        // Spigot Start
+        if ( entity == player )
+        {
+            disconnect( "Cannot interact with self!" );
+            return;
+        }
+        // Spigot End
 
         if (entity != null) {
             boolean flag = this.player.o(entity);
-- 
1.8.1.2