Annoy people at the local movie theater by pointing a lasre pointer up on the movie screen.

Place caution tape all around someone's house or yard so it looks like a crime scene. To make it look even more real, use chalk to outline a dead body on the sidewalk.

Throw a couple of Baby Ruth candy bars in public swimming pools. People will be disgusted and think someone pooped.

Leave a dollar bill on the ground in a public place with a pile of poop on it. See if anyone will take the bait.

Take all your leftover pancakes that nobody is going to eat anyways and stack them in the middle of the driveway.

While taking your dog for a walk, also take a walking stick along and some shades for your eyes. Then pretend you are blind and start bumping into people and objects.

Go into a public restroom and rub some spicy hot suace on the toilet paper. Don't rub too much or the victim will notice and trash it.

While at the local supermarket, slip items into peoples carts when they aren't looking. The more embarrassing the item, the better. Some funny ideas include maxi pads or makeup for guys or condoms and lubricant for women. Sometimes people won't notice til they reach the checkout lane.

Crush up some hot peppers. Then use the juice and smear it on door knobs, hand rails, or any other place that people put their hands on. They will not know they just touched hot peppers...until its time for them to rub their eyes...OUCH!

Next time you come across one of those public signs with removable letters. Rearrange them around to spell something else. Be creative. Change a Doctor's sign to read: Dr. Jones We Break Bones here or something similiar

Purchase a "universal TV remote" from a place like Radio Shack. When walking by public TVs, such as those in a dorm lounge, change the channel without giving anyone any idea you are doing it.

Be obnoxious as possible while loudly speaking another language. (german, french or whatever) When you hear someone mutter something like, "I wish they would shut up." respond appropriately in perfect english.

Get some cones or barrels and divert traffic from a nearby street through campus or your workplace.

When you see several folks relaxing in a hot tub, throw ice cubes into the tub. They'll wonder who's throwing stuff at them, but the cubes melt almost instantly leaving no evidence or clues as to who is doing it.

Print out some signs that read, "Push" and "Pull" and tape them to doors at your local stores. Make sure to place them on the wrong side. Then sit back and watch as people push when they are instructed to pull and vise versa