I think it would be really fun to turn off a stereo or something and put it to the top volume so when someone turned it on it would blast in there face =P
Okay, this one's good. Go into Wal-Mart, grab a bunch of tampons and panty hose, then find an old man. When he's not looking, slip them into his basket underneath this stuff. Surreptitiously follow him until he checks out. Watch the hilarity that unfolds.
Then, there's the old-fashioned "find-the-intercom-and-scream-body-parts" trick.
I used to work in a party store, some kids would come in and make a bed out of the milk boxes and lay down and play cards in the middle of the aisle's, there was actually one duder who came in with an airhorn..needless to say the buffoons weren't allowed in anymore. ANYWAYS.... I guess I'd go in and photo-copy my butt.
I would take an electric whoopie cushion and walk around the store, hitting the button. Or I would make embarrassing phone calls really loudly, like this video.
wait for store clerk to go somewhere then push da button under ledge to alert the cops and then put up pictures of cookies and throw cookies everywhere in the store
