Guy that we all hated in college left for spring break. We broke into his dorm room, opened all his drawers and threw all his clothes on the floor. We then put a live chicken and a TON of feed in the room for a week. Not a square inch of the floor, desk, bed, etc. was clean when he got back.
At work: Remote control fart machine
That you, Bill?
Two pranks always come to mind when this subject comes up.
They were both played on a guy named Joe.
Prank #1: Joe went deer hunting every year with the same group of guys. He played trumpet in a small band and would bring his horn for some "music" around the nightly campfire. First morning, one of the party brought a plastic trumpet they had spray painted gold. They hoisted it up high in a tree with a rope, called Joe out of his tent. The group of guys all were aiming up at the "horn." As Joe looked up they opened fire.
Prank #2: Plywood cutout of a deer with antlers attached. Strategically placed where Joe would see it. As dawn broke, Joe could be heard shooting his rifle, over, over, and over. Emptied his clip, hit the "deer" everytime. The evidence was on display where he worked.