Or if you are not in Wal-Mart, but some place that has toilets on display, here is a good prank!
YOU WILL NEED:
A large news paper
And no modesty whatsoever
OK, here it goes, first make sure nobody is around, then sit on the toilet like ur goin' to the bathroom, BUT DO NOT REALLY, hold the news paper up in front of you, and when some one walks by say, "Honey be a dear and shut the door, I feel a draft." This also works if there are no toilets in a store. Just use a janitor's bucket!
And as I said b4, WHATEVER U DO, DON'T ACUALLY GO!!!
P.S. It will probally better it you don't pull your pants down.