3 weeks ago I had a clash of heads playing soccer. I was cut but cleaned myself up, walked away, applied ice at home and flew to Iceland a few hours later with a proud battle wound up top. The other player was concussed, but came to and had the presence of mind to demand photos. The guy had been lying on the hard floor for 15 minutes waiting for an ambulance in a widening pool of blood, but still smiled for a mug-shot. You've got to admire Australians.
Here's what he looked like + my comment.