One of our two outdoor cats likes to lie under our cars and also walk on the grass beside the driveway. We always try to watch out for him since he's taken to walking nearer than we'd like as we drive up. If he wants attention, he'll flop down onto the driveway showing his belly for pets. It finally happened. He was walking on the grass, when DH was backing out. Only then he was behind the car before DH knew it. Poor kitty seems to be in some pain (maybe some internal damage?), but no broken bones. We have to just wait and see. I hope he's ok, and that he's just used up one of his 9 lives.