If you don't know about pain and trouble, you're in sad shape. They make you appreciate life.
You'd think a guy who has broken 35 bones in his body would have a high pain threshold, but mine is pretty low. I got hit in the shin with a golf ball once and it almost brought tears to my eyes. I've had broken bones that didn't hurt as bad.
I did everything by the seat of my pants. That's why I got hurt so much.