Well, after 50 years on motorcycles, 6 of them on my CBR300R, I have broken bones. 100% my fault. Failure to concentrate. You cannot be lazy about focus. Ever. Risk mitigation is a full time job. As bad as it feels right now, I got off easy: two broken metacarpals and a lot of wrenched/twisted muscles. Six weeks minimum off the bike. For the record, the CBR is tougher than me: minor scrapes only. I actually got back on and finished my ride to work (stupidly).