"You know what the major export in Italy is?"
"No. What?"
"Revenge"This may seem like a really good idea CK but I can almost be certian its going to get you into trouble. If you do something to the network or mess with anything at school you could put yourself into something serious. I would suggest you just forget about it.
On a side note. I had a friend in undergraduate who had issues with his roommate. One night the roommate played a practical joke on my friend. Well my friend instead of laughing it off and letting it go decided to get him back by placing dirt, leaves and other various nasties underneath the covers of his roommates bed. Knowing that the roommate would be going out that night and getting trashed and showing up drunk like every saturday night he figured the roommate for one wouldnt notice all the shit in the bed and then just laugh it off. It didnt happen that way. As it turns out the guy was drunk and did notice and the following day when he sobered up he told the residential life. Long story short after judicial hearings and so forth my friend was forced to move off campus his very first semester at school....mid year when there was little off campus housing.
Honestly I would think long and hard about getting revenge on someone especially when it can have consequences such as losing your housing and thus making your life very difficult.
And as a point of law, if you do something intentional, even if the other person is not really harmed by it they can still sue you. Thats just a little caveat for ya.