Something similar happened to me a little over a year ago.

I was getting "frisky" with my girlfriend (now fiance') and I hear the alarm on my 99 Camaro Z28 Convertible give two beeps. I hop up and look out the window.

All appears well.

I watch for a bit longer then go back to my business. Then I hear a "SMASH" sound and the alarm starts going off again. I toss on my pants and a shirt then have to decide between a hammer or shoes. I grab the hammer and run outside to a completely smashed driver's side window. As I look I notice that nothing's missing. Even my CD case is still sitting safe and sound on the passenger seat.

Fiance' runs out a second later and asks what's going on. Being in a fit of rage and in a predominately black neighborhood I shout in anger that "some [racial-slur] had busted into my car". At this point a man runs from where he'd been hiding across the street.

I give chase and yell for him to stop and notice that he has a hammer in his hands. As I tell him to stop and yell for my fiance' to call the police, he takes a swing at me WITH THE HAMMER!

I've actually trained in martial arts since I was in grade school, but never knew that they would save my skull from being caved in. I blocked the hammer (which sent it flying into some nearby foilage), gave him an elbow, and tossed him over my hip. I then sat on his back and threatened to cave in his skull if he moved.

Police arrested him and insurance sued him for all damages to my car (after fixing it and giving me new leather on the driver's seat because the glass "scratched" it)

Anyway, duke that was awesome as hell. Hope you messed him up real bad.