lol they call using a proxy hacking the server at your school?
one of my classmates managed to hack (well, actually sniff and use) the school network last year. After changing a few marks and stealing a few tests he had enough fun and finished his job by changing the screens on which you can see which lessons are cancelled/changed to a nice picture of Bart Simpson "Eat My Shorts"
That's how much fun a password sniffer can be
/ 
