My missus was driving my car, me as a passenger. We were waiting at an exit of a petrol station and there were three cars, all waiting to turn right. we were the third car back. For a reason unbeknown to anyone but the driver the car infront of us decided he wanted to go left instead so he reversed right into the front of my car, the front driver drove off (probably not seeing what happened) the wing is crushed/dented and the bumper scratched/torn apart. After getting out and speaking to the driver he said 'why would I reverse, you drove into me!' no witnesses, apparently no CCTV (funnily enough he works at the petrol station)
now my missus is third party on her insurance to drive other cars and not a named driver on my policy.
Damage to his car consists of a small dent in his bumper, mine as above.
The police came and exchanged details because he was about to leave the scene of the accident before I 'advised' him not to.