Accidents are deer wandering into your path. Or a tree falling in front of you. Or a car with a blowout (although that's pretty rare these days outside cases of severe neglect) coming into your lane, those are accidents.
Accelerating away from the scene of an accident, and driving for a mile at high speed before you wreck out again, that's not an accident, nor a mistake.
(The driver of a car with a blowout should have enough skills to maintain control, IMHO, but we don't teach drivers anything like that, so its unreasonable to expect that, I suppose)