src/de/steamwar/lobby/LobbySystem.java

@@ -23,6 +23,7 @@ public class LobbySystem extends JavaPlugin {
 		pm.registerEvents(new ParticleListener(), instance);
 		pm.registerEvents(new PlayerHiderListener(), instance);
 		pm.registerEvents(new EnderPearlListener(), instance);
+		pm.registerEvents(new PortalListener(), instance);
 	}
 
 	

src/de/steamwar/lobby/listener/EnderPearlListener.java

@@ -39,7 +39,7 @@ public class EnderPearlListener implements Listener {
             if(player == null) //in case of player leave
                 return;
             LobbyInventory.givePlayerLobbyItems(player);
-        }, 20 * 3);
+        }, 20 * 4);
     }
 
     @EventHandler

src/de/steamwar/lobby/listener/PortalListener.java

@@ -0,0 +1,15 @@
+package de.steamwar.lobby.listener;
+
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.Listener;
+import org.bukkit.event.player.PlayerPortalEvent;
+
+public class PortalListener implements Listener {
+
+    @EventHandler
+    public void portalEnter(PlayerPortalEvent event) {
+        event.setCancelled(true);
+        event.getPlayer().performCommand("/bau");
+    }
+
+}