if your school watches Channel 1, last year the seniors replaced the channel 1 tape with a porno they had edited.....showed a guy bangin a girl in the ass, and it said "You're ****ed! Class of 2002!"
all you need to do is get access to the tape and switch it with one that looks similar.......all schools record it, because Channel 1 airs the night before. They passed it around to about 200 different people, so there would be a mess of fingerprints on it.