That one time i got unconscious, was when i stepped on a tennis ball, flipped over and hit the ground with the back of my head. I was out for 15 seconds, no memories of the 3 days after that and then still pucked for days without being nauseous. I was lucky that my brain didn't swell or i would have had permanent damage.

Unconscious is the emergency shutdown an inch before death, serious stuff. The trivialization in movies bothers me.