(you can skip the first minute if you want to jump straight to the event)
Link to original page on YouTube.
Although there are other plausible explanations for this guys behaviour, the most likely one is that he sustained a head injury and wasn't in his right mind.
I'm very much a live and let live type, but I think in this situation I would have nicked his keys and called an ambulance. I'd have probably then lied to the dude and said that the keys must be on the ground somewhere. Do you think that would be an appropriate response?
Have any of you been in a situation like that where someone has had a crash and gone a bit loopy? It looks like a really difficult situation to be in.