Last night was the first time ever I was knocked out. But I wasn't scrapping. (makes a change)

At a friends house, I threw a whitey and started sleep walking, tripped up a step, smashed my head against a radiator and hit the deck hard, smashing my cheekbone into the laminate floor (I'm not even lucky enough for a bit of carpet  ). 2 Hours of scary comedown and one concussion later, I could go to sleep.

Thank got there was a first aider in the building.

So everyone, what are your tales of head injuies?