Slap fighting is blowing up over the past year or so, and I don't know how these guys are still able to function. I saw a video recently (below) of some slap fighting show in Romania, and these guys were destroying each other, to the point one dudes face looked swollen to the point his face looked as if it was sliding off. These guys have to have brain damage from this shit, their brains are rattling in their skulls with each slap, no way they're not getting a concussion or more.
www.ibtimes.com

LOOK: Man's Face Gets Terribly Swollen In Slap-Fighting Tournament
A man won over $5,000 in a slap-fighting tournament, but he also went home with a horribly-swollen face.
