Now bearing in mind this happens quite a lot particularly near traffic
> lights. If he scratches the car by accident and decides to ride off
> what can be done?
Nothing. Just like if a pedestrian does it and walks off, or a motor-driver does it and drives off, or a llama-rider does it and rides off.
What, exactly, was the point of your incoherent sub-grammatical rambling?
regards, Ian SMith