Ian,
You definitely DON'T need some of the advice that's been dished out in this thread.

Find a better way than a cowardly revenge.

Go get a girlfriend that's twice as pretty.
If you're doing what's right in the first place, let them be mad. Being mad doesn't make them right. If the cops are around, all the better. Have THEM get your laptop back.
Winning a battle through the proper channels and with a clear conscience is an infinitely sweeter revenge.