Run around corner, jump straight up, hover over the door. When they run through, drop down behind and give a good ole right hook to the back of the skull. Or if you wanna just play with their head a bit. Drop down and run back out the door instead. Confuses the crap out of most people, and you're already long gone. Or for an added kick, do it twice, then kill them. Makes for a hilarious film clip when you totally own him/her, lol