The organ donors reference is catchy (I'm particularly fond of donorcycle myself), but I think statistically it is young people in general who are most likely to become organ donors, not just squid bikers (squid being the helmetless, T-shirt and flipflop wearing guy doing wheelies down the street on his crotch rocket). The odds of dying on a bike go way down as people age, and down an order of magnitude again for people who wear the proper protective gear (helmet, armoured suit, gloves and boots). Of course it's not the safest of all leisure activities, but I doubt it's more dangerous than real mountain climbing or many of the things we adults are inclined to do for excitement. Heck, just getting laid killed Entwistle!
So, I guess my point is that *if* Bradley really wants to do this, then there are resources aplenty to help him learn how best to do it safely, and so that he'll live to play again and again and again.. A couple of years ago I thought riding a motorcycle was the next best thing to suicide, but I've been converted by what some of the members here have had to say (Kevin, Deano, J o e y, Rami and Olie, among others) and by lots of what's going on over at the advrider site (which has a long-running for bass players thread). Also consider I've done more than a few adventurous and dangerous things all my life and can't see living any other way, so when I spot what is possibly a like-minded soul among us I'm inclined to want to help nurture that..
And today was an awesome day for a ride with my wife!
John