Car A is driving along behind car B, apparently heading towards the roundabout beside Asda in Blyth, England. Car C pulls across in front of car B, possibly illegally, causing car B to brake sharply. Car A also brakes, but not in time to avoid a collision with car B. Car C does not stop, but cars A and B do. Car A has a damaged bumper, and car B has scratched paintwork, and the driver of car B expects the driver of car A to pay for the repainting work, even though it is not clear that car A was at fault.
Does anyone have any advice for the driver of car A?