Don't feel bad.
Recently I arrived home from a business meeting and pulled into the driveway (with the garage door closed) and stopped about 4 feet short of the garage. Forgot to turn off the car and put it in park, and got out. Took a couple of steps away from the car and it slowly started to roll into the garage door, and by the time I managed to climb back in it and stop it, the entire garage door was wrapped and crumpled around the front of the car. Garage door was a write off and lots of paint scratches to the car. Paint scratches were easily touched up, but the insurance wouldn't cover the garage door. Expensive gaff. Not a pretty sight either. After I got over the initial shock of seeing what happened, I nearly pissed myself over my stupidity. *G*