Happy birthday and good night. This chick is going to have a tasty headache.
Sweet dreams...You just got knocked da f*ck out!
When people get scared their body goes into fight or flight mode. This guy chose to fight.
Dude just got owned. Now he's counting sheep.
First rule of fight club, don't suck at fighting.
Dude takes a kick to the face and takes a nap!
A bad landing knocks this guy out cold. He's going to wake up with a headache!
More drunk people knocking each other out by having a slap contest. Rule of thumb, don't play with the guy that is twice your size.
A couple of kids go at it in the locker room with some boxing gloves and one of them gets knocked out cold.
A fellow soldier shows his buddy how to knock someone out using a karate chop.