Someone I know had to have several months off work, apparently after being run over by their own car. Seemed a bit far fetched, but it can happen and with potentially fatal results. But today they were telling me the details of said accident, which caused my BS alarm to go haywire. It was an automatic BMW (don't know which type, but it would have been a Motability car so nearly new) that they state was left in Park but the electronic handbrake failed and it rolled back. As far as I know, this would be impossible. Even if the handbrake did fail, I've never heard of a parked automatic jumping out of gear, not to mention it would have then also had to build enough momentum to have knocked them down and gone over their back. They say BMW investigated and found no fault and they can't afford to take legal action. So is there any conceivable way this scenario could happen?