I was up there.Guy on dirt bike had apparently been drinking/not wearing a helmet.To my knowledge he wasn't even running and didn't sign the waiver he was just riding around the pits and return road.The quad had just made a run and was coming down the return road hauling ass while the guy on the dirtbike was not wearing a helmet and heading the wrong way up the return road hauling ass.From what i understand and it looked like both of them locked up their brakes and the 4 wheeler tried to go into the grass to avoid hitting the dirtbike.Guy on 4 wheeler ended up with a badly broken arm.I ran down there right after it happened adn the guy was laying on the return road not moving. Then this bitch yells she is an EMT goes down there and stands there for 15-20 minutes and DOES nothing at all.Not that there was a whole lot that could probably be done because well like someone said there was something on the outside that's supposed to be on the inside because he wasn't wearing a helmet.