Were you playing hockey?
I've got to say, after reading this entire thread, I feel SO lucky. I'm 36 and have had very little major pain compared to a lot of you. Got burned by hot coffee when I was a year old, hurt my back sledding once, a couple of ankle injuries from ice hockey, and a couple of pucks to the face is about all I've ever had. Be it lucky or taking care of myself, I don't know. But I don't want any of your guy's pain!