>>862363Uhm ... so .... what "adrenaline sport" are you after?
Snow; I ride backcountry, race hillcross/snocross/drags.
Dirt; ride dualsport, race enduro/harescramble.
Rode buckin bulls in the rodeo in college.
Safety's the best place to start with whatever sport you choose. Have some basic first-aid training, knowledge of the processes/procedures in that activity, what happens, how and why.
If it's a sport you're serious about getting into, start shopping for the gear to do it safely. When you're committed to not just participating in that activity, but doing it safely and correctly, the insiders that know the ropes are a lot more likely to help you out. I'll ride with anyone once, but if I don't have faith that you can rescue me if I make a bad decision, or if you're making bad terrain decisions and not communicating with the rest of the crew, I won't be riding with you again. There's a few guys I can think of right now that are friends of mine, but I won't go ride with them.
Shooting sports... 4 rules.
Rodeo... Chute procedure is probably the biggest one, that's where most of the preventable-accidents I saw happened.
Mountain sledding... avalanche education and elevation/temp-related first-aid skills.
Moto... probably navigation and backcountry survival. That's probably the "safest" adrenaline-sport I've been involved with.
Accidents still happen... but the right gear and confidence in the riding/track crew minimizes the possibility of injury or death.