Sounds stupid, Messing with the school board now, federal offense...I had a friend who tried something of the sort, they supposivley didn't discover who "shut down the internet" until he was 18, perfect age right?
Anyways, you can look into any type of, well virus such as prorat or a rat such as Bifrost.....I wouldn't reccomend. I noticed once when shutting down a computer, restarting it, starting it in safe-mode that there wasn't a password on the Admin account. I don't believe you are able to boot the computer in safe-mode usually so it could be pointless. Good luck though...if you really want to be that idiotic.