That's surprising. Not because one group wouldn't overlap the other, but because of the danger involved. My third year of law school, I interned at a firm with several partners. One of the coolest partners handled criminal defense (this was before I ever got into criminal defense work myself).
Just a few years after graduating, I heard the guy had died in a snowmobiling accident. Doing a little research, I found out there are a lot of injuries and a few deaths in the sport/hobby. Makes sense, since you are usually riding around on snow and those machines make a lot of power.
Nice family man, the guy I knew that died doing this. No word that alcohol or anything like that was involved, just an accident.
The other one that always makes me shake my head is DUI on a motorcycle. No DUI makes sense, but operating a motorcycle is far more complex than operating a car, and you have almost no protection around you. Really stupid.