You could always argue with the management over tue color of a shirt. ITs NOT GREEN!! YOU LIE!! ITS LIME!!!
Dress like a employee then cause all kind of chaos.... You can send a lost costumer to auto when they want a shoe, or other more evil things
Sing Lady Gaga songs really loud and in such a horrible voice your voice crack every now and then and sometimes it goes so high you make babies cry. While doing this, do some of her dance moves badly and go up to random employees and customers and dance on them and move on to the next victim.
Jump around the beds and run away from the employees and last as long as you can before they catch you!
Go up to an employee n pull out a knife with fake blood on it and say " im a pscopath!! Im gonna kill you!!"
Do a dirty flash mob in the middle of the store! It's awesome! Lol my dance class did it last year. But dont forget to make it dirty if you're really trying to get kicked out. Lol