i don't see how you could get suspended from school from something you have in your home. also, the fact that you have admin rights makes the explaination easy. you need to know how people break into systems in order to protect yourself, so it's reall just research. thats like saying a police officer needs to know what pot smells like if he wants to catch people who smoke it.

and from now on, i would keep your hacking tuts encrypted or locked up