I don't know if I want to call this sport bad ass or dumb ass, but I guess both fit. Check out the so called "Future of Sport", Tazer Ball. It's kinda like football, it's kinda like soccer, and it's a lot like getting tazed by the police.

Football.  Hockey.  MMA.  All of these sports are in the discussion for the most bad ass sports on the planet.  But Tazer Ball takes real balls, when you take into consideration that everyone on the field is armed with a 300,000 volt stun gun.  Plus, there are your standard hits and injuries that come with any full contact sport.  It blows my mind that these dudes can get hit, get electrocuted, and get back up.