This is really elaborate. What you do is the day before april fools you pick a target and stage it so that he "accidentally" ruins something of yours. Tell the target that it was really valuble or something and make him feel guilty. Then you tell him that sometime within the next 1 or two days that you will take your revenge, but you will not tell him when. As he sweats it out, you need to secretly follow him to his dorm or something, and get his roommate to give you a key to his dorm. When he is out, you move some crap around and stuff, but thats all. After he sees that his stuff was moved around and leaves the dorm, you go back in and set the alarm clocks to some different time, preferably while hes asleep. and the rest is up to you, i would "borrow" all his pants or something, but the end is dependent upon your individual tastes, so you have to think that part up yourself, otherwise it wont work.

My math teacher always says "You two should go to bike racks to fight, " or "I'll meet you at the bike racks." Deciding upon a christmas gift, me and a friend went and unbolted the bike racks from the ground then carried them into his class before exclaiming "Merry Christmas!"

When we go on Band trips, we have to share a queen sized bed with someone else just to make the travelling economically feasible. So, my best friend Eric was absolutely piss drunk the night before. I made sure he was really asleep, and then put a chair on his bum and left it there. Waited a bit, then took it off. Then, I took off my shirt and got back into the bed. He wakes up, and I say "Good morning tiger."

I wish I had a picture of that look of abject terror on his face, especially after he realized his ass hurt.