You've all seen this coming:

1. Look in the mirror and scream "Oh my god! It's hideous!!!" before running out.
2. Wash your hands obsessively in the sink and mutter "Gotta rid of the evidence...."
3. Stick your hand under the stall and ask "May I borrow a highlighter?"
4. Open a stall door. Scream "there's a leprechaun in the toilet!" and run out.
5. Sell toilet paper.
6. "Uh oh. I probably shouldn't have put my lips on that."
7. Ask "Now, how did that get in there?"
8. Ask people "Were there more sinkers than floaters?"
9. Pound on someone's stall door and scream "Are you almost done in there?!!"
10. Knock on someone's stall door and ask "Are you alright in there? What's happening?"
11. Knock on someone's stall door and ask "Do you have a lighter?"
12. Smear some chocolate on a piece of toilet paper. Then kick it to the next stall and say "Oops. Looks like I missed the toilet."
13. Open a stall door, take one look at the toilet and scream "Oh my GOD!!! What the hell IS
that?!!!" and run out of the bathroom.
14. Brush your teeth.
15. Shave.
16. Slip a note under someone's stall door that says "Hello. How are you doing?"
17. Sing while you're doing your business.
18. Tell everyone in the bathroom "Be careful when you sit. You could fall in."
19. When you're finished, slam open the stall door and rush to the sink. Obsessively scrub your
hands and scream "Oh my god! I can't believe I touched it!!!"
20. Knock on someone's door every 4 seconds and yell "Are you almost done yet?" Nothing is more annoying than being rushed while you're doing your business.
21. Knock on someone's door and ask if they'd mind doing a quick survey.
22. Smear some chocolate on your hands and then stick it under the stall door and say "Can I borrow some toilet paper?" Literally, borrow the paper and offer to give it back.
23. Grunt and strain for 30 seconds before dropping a heavy object into the toilet.
24. Pretend to call someone while taking a dump. Make sure everyone can hear your conversation
 "Hey Bob. What's up?... No, I'm not doing anything."
25. Leave creepy notes on the toilet paper for the next person, such as "I've got my eyes on you."
26. Tape a phone number to the back of the stall door that says "Call me. I'm desperate."
27. Tell everyone the bathroom is haunted. Make spooky noises and flicker the lights when they're doing their business.
28. Walk around and ask people if they've seen your lost cat.
29. Strike up a conversation with people in line. "So...I ate this bad mushroom, and I've had the sh*ts for days...."
30. Knock on the stall doors and yell "There's a fire in the building. We must evacuate immediately!"

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