Public Restroom Fake Sign
Print a fake sign with your home computer and printer. To make it look more professional, go to the store or restaurant's website and print their logo to put on the sign as well. Then type and print something like this to post in the restroom: Attention (store name here) Customers, to prevent shoplifting we have installed several hidden cameras in our restroom. These cameras are monitored daily by our staff. Please inform customer service if you do not want to be monitored. Please be advised that if you choose this option, you will need a store attendant to accompany you in the restroom. Thank you, have a nice day.

Peanut Butter and Molasses
Mix together some peanut butter and molasses in a bathroom stall. Then wrap some toilet paper around it. After that, toss it under the stall next to you and tell the guy on that side "Oops! can you please toss it back over?

Urine Sample
This prank can be used at any store or restaurant restroom. Just go into a stall next to someone who is already there and tell them you are about to be hired at the store or restaurant but they want a urine sample. Tell the person you don't think you will pass the test and ask them if they could please piss in it for you. Hand the plastic cup underneath the stall. Most people will say no...so just keep begging them. This is very annoying...especially if the person is just sitting there and trying to do his business.

Where did all the toilet paper go?
Go into a public restroom and throw all the toilet paper in the garbage can.

Pissy Pissy
Go into a public stall next to one that is already in use. (Works best if the person in the stall next to you is taking a dump). Then unzip and pee, but instead of peeing in the bowl, pee on the side of the toilet, missing the bowl completely. All your piss will bounce off the toilet and splatter into the stall next to you. Some of it may spray all over the victim's legs or foot. Be prepared to run as soon as you finish. This prank will easily piss off your victim.

Dinner Time Stink
Before your next get together meal at someone's house, eat some beans and hardboiled eggs. Then during dinner asked to be excused so you can use the restroom. Use the restroom to take a huge dump. Make sure to close the window and not turn on the fan. After you are done, forget to flush and do not use the air freshner. Oh, and leave the door open. Then walk back to the dinner table and act as if you don't smell anything.

Upside Down Flush
Loosen the nuts on the top of a urinal. Just enough so it stays in place, but when someone pulls the handle to flush it...the urinal rotates down! Now the water would spray from the top and soak the victim. It will soak your victim from the waist up.

Jello In The Bathtub
Fill your victmi's bathtub with ice cold water and ice. Pour in a alot of jello powder and turn the air conditioner up. In a few hours, there will be jello in the bathtub.