I got my first dent and wasn't even driving. I had company visiting my wife. The person had, for some reason, just pulled into my driveway and stopped. When I came home from work, I just drove around her car and parked in front of her. We were sitting at the table when she said, "Look! Someone is taking your truck!" Sure enough my truck was backing out the driveway--by itself. My drive has a slight incline and I forgot to set my parking brake or leave the truck in gear--something I hadn't had to worry about with my automatic '00 2500. Well, the curve in my back bumper is a little curvier on the right side now, but I caused $660 damage to her Honda when my truck hit it. Unless you look for the damage, you can't see it on the bumper, but it's a reminder to me to set the parking brake. Oh, that fell under comprehensive insurance, and "Act of God", so my insurance picked up the tab--lucky me.