Breaking into people's cars is not nice at all. Plus you're unlikely to get too much outta the car that's worth anything. I've had my car broken into before. What was weird is they only stole stupid stuff like the ipod cables, my sunglasses, and things like that. They didn't take my stereo out or anything. The police caught the guys that did it because they hit up the whole apartment complex lot and broke into nearly every car there. Never did get my stuff back though.