Two words - DUMB A$$!!
This is coming from a lifelong Steelers fan... sorry about your freedom and all Ben but when you're the QB on a SuperBowl caliber team you have a responsibility to all the guys on that team and the city to not do stupid things to injure yourself whether it's skiing, riding a bike (with or without a helmet)or jumping the Grand Canyon in a rocket bike. You're 24, young and rich - play with these kind of toys AFTER your done with football.
And I call BS on the "could've been a broken neck with a helmet" talk - I'm sorry but that's just plain stupid.