Everytime i see threads like this, i really want to go out and get a good alarm. The thing is, my car is almost alwasy either at school, infront of my house, or infront of friends houses. Other than that its almost never out of my site for more than 5-10 min. No excuse at all obviously, that could easily happen.
Sorry to hear that, sucks about your hand too. That's something i'd probably do too (done it before)