skateboard around the whole store with one of the crappy boards from ther
or make a list of things you need and race around on a skate against a friend and who ever gets all the stuff first wins
go into the dressing room stall and then shout out loud- "hey could I get some toilet paper in here!!"
fart in an aisle and then watch as people walk through the toxic cloud.
Pretend to steal things and have a "code yellow" called on you. Then when they question you, you'll have nothing on you and they can't do sh*t
light a fire in the bathroom trash can
uhh shopping! DUHHH