Then one night I am sparring one of the instructors. He was 25, and a black belt. He was doing all sorts of shite trying to show off and drop me, looking back, he should never have been going so hard on what was just a kid. Anyway, I avoided his shots as had learnt they feckin hurt, then cracked him with a straight right while moving backwards.
BOOOM !! He hit the deck like a sniper had taken him out. A few seconds later people started to realise he was completely out and ran over. As well as putting him to sleep, I had smashed his cheekbone in pretty bad. I only saw him once after that, a week later when he came it to 'get something', and even then one side of his face was black. I left not long after as my mom finally believed I could handle the big world.
That was my first KO.
I've never actually had someone completely out in a competitive bout though