No, motorcycling accidents, however caused. My point being that I want to do nothing to increase my chance of injury. So, if I get a camera, it will be a motorcycle mounted one and certainly not a helmet mounted one. What pissed me off is that when I fell off the horse (Rodney, was his name) they scrambled an air ambulance. They wouldn't land because of all the horses milling about and so I never got my helicopter ride! Not that I would of known anything about it as I was well out!
The metal mounting of Schumacher camera mount was atop of his helmet. It basically speared straight through into his brain. A side fitted helmet clamp camera mounting like an intercom will not offer the same damage, and I think motorcycle helmets seem far better built than ski helmets?