HAHAHAHA man my buddy had us on this alllllll last night! it wa sooo funny and everyone was freaking out so much! lol i went home this morning and found out the trick. it was kinda disappointing but now im in on the joke and none of my friends are! its golden.
btw heres the trick
http://chriswondra.com/2007/02/21/peter-answers-the-secret/