Get to a boss without having to kill trash mobs

Since 1.10, pretty much all servers are lagging really bad. Auction house is broke and when you enter an instance, mobs are not spawned. But they do spawn after a while.

You can run behind a boss before mobs spawn and kill the boss once they spawn. This is pretty useful in places like Dire Maul north for a 5min tribute run, or maraudon for a princess run. I tested it with 45min ud strath, but the timer wont start at the gate. Still useful.