i think they just get lazy well driving!
i hit a son of a bitch right in the door with my first car. it was a silvia. Yes, i was speeding but he pulled out of a service station with out looking, i couldnt stop in time.... the dick didnt even realise i hit him he drove off 1km down the road them must come to his sensors and reversed back another 1km. i think he was lookin at a "people" mag cos i spotted one in his cab.
his repairs cost $2k i should have just driven off like nothing happened!!!