1. Take shopping carts for the express purpose of filling them
and stranding them at strategic locations.

2. Ride those little electronic cars at the front of the store.

3. Set all the alarm clocks to go off at ten-minute intervals
throughout the day.

4. Start playing Calvinball; see how many people you can get to
join.

5. Contaminate the entire auto department by sampling all the
spray air fresheners.

6. Challenge other customers to duels with tubes of gift-wrap.

7. Leave cryptic messages on the typewriters.

8. Re-dress the mannequins as you see fit.

9. When there are people behind you, walk really slowly,
especially in thin aisles.

10. Walk up to an employee and tell him in an official tone, "I
think we've got a code 3 in housewares," and see what happens.

11. Turn all the radios to polka stations; then turn them off
and turn the volume up to full blast.

12. Play with the automatic doors.

13. Walk up to complete strangers and say, "Hi. I haven't seen
you in so long." etc. See if they play along.

14. While walking through the clothing department, ask yourself
loud enough for all to hear, "Who buys this crap anyway?!"

15. Repeat #14 in the jewelry department.

16. Ride a display bicycle through the store; claim you are
taking it for a test drive.

17. Follow people through the aisles, staying about 5 feet
behind them. Do this until they leave the store.

18. Play soccer with a group of friends, using the entire store
as your playing field.

19. As the cashier runs your purchase over the scanner, look
mesmerized and say, "Wow, magic!"

20. Take off your shoes and tell them you want to return it and
when they say you didn't buy it there say "Hmmmm....I thought
the customer was always right!"

21. Move "Caution : Wet Floor" signs to carpeted areas.

22. Set up a tent in the camping department; tell others you
will only invite them in if they bring pillows from Bed and Bath.

23. Test the fishing rods and see what you can catch from other
aisles.

24. Ask other customers if they have any Grey Poupon.

25. Drape a blanket around your shoulders and run around saying,
"I'm Batman. Come Robin, to the Batcave."

26. TP as much of the store as possible.

27. Randomly throw things over into neighboring aisles.

28. Play with the calculators so that they all spell "hello"
upside down.

29. When someone asks you if you need help, begin to cry and
say, "Why won't you people just leave me alone?"

30. When 2 or 3 people are walking ahead of you, run between
them yelling "Red Rover."

31. Make up nonsense products and ask employees if there are any
in stock. (i.e.: Shnerples)

32. Take up an entire aisle in toys by setting up a full-scale
battle with G.I. Joe vs. X-men.

33. Take bets on the battle from above.

34. Test the brushes and combs in cosmetics.

35. While handling guns in the hunting department, suddenly ask
the clerk where the anti-depressants are. Act as spastic as
possible.

36. Hold indoor shopping cart races.

37. Dart around suspiciously while humming the theme from
Mission Impossible.

38. Attempt to fit into very large gym bags.

39. Attempt to fit others into very large gym bags.

40. Say things like, "Would you be so kind as to direct me to
your Twinkies."

41. Set up a "Valet Parking" sign in front of the store.

42. Two words: Marco Polo.

43. Leave Cheerios in lawn and garden, pillows in the pet
section, etc.

44. "Re-alphabetize" the CD's.

45. In the auto department, practice your Madonna look with
various funnels.

46. When someone steps away from his or her cart to look at
something, quickly make off with it without saying a word.

47. Relax in the patio furniture until you get kicked out.

48. When an announcement comes over the loudspeaker, drop to
your knees and scream, "No, no, its those voices again."

49. Pay off layaways 50 cents at a time.

50. Drag a lounge chair over to the magazines and relax. Go to
the food court, buy a drink, and explain that you don't get out
much and ask if they can put a little umbrella in it.

*BONUS*

1. Attempt to do all of the above in the same visit, without
getting kicked out.

2. Try to hold up customers with the toy guns. See how much you
can make.

My cousin use to wear all his clothes from Gap and then pose by the manikins at the front window.

That's been posted before, but funny anyway