I have never been knocked out in a fight
I have been ko at high school playing that game a couple of you mentioned
We used to bend over take real deep breaths then stand up holding in your breath while someone comes up behind and squeezers you around the chest , GOOD NIGHT !
Just remember walking up on the floor with everyone laughing
I was in a karate tournament when i was 16 , this big guy just came running in for me , i did a spinning back kick and sent him flying accross the mats
he was out for around 2 mins , and i got disqualified , it was supposed to be light contact