Formula 1 and other divisions in 1980 and before: Formula 1 was in 1980s and before even more dangerous than NASCAR. A lot of people died. Was participating or watching this sport where several people drove in circles for the top award even to the deah a sin?
Professional boxing: The sport that bother’s me the most. I myself train amateur boxing and until some time ago, i was a big fan of professional boxing. I think its a noble, honourable and friendly sport with sometimes catastrophic consuquences. People die in the ring alot of times or get heavily injured. But these deaths and heavy injuries are mostly the result of the stubrness of boxers, who would fight even if they know that their life is on the line. Professional boxing would be alot safer if there would be a governing body to know when it is safe for a boxer to fight or not.