The whole Richardson scenario reminds me of a post by JPPE sometime back where he was riding with a fellow rider, who sustained a rather significant fall on his head, and as I recall (which is none too good these days) had a blackout.

The question was whether or not to be checked out at the emergency room, and the decision was to NOT be checked out.

Some folks gave the guys cheers for being "macho" and "brave." Me? I thought it was absolutely foolish not to be checked out in an ER after a significant head fall.

I don't remember whether or not he was wearing a helmet, but I think he was. But that would make no difference to the decision.