I never have, but LAdy's Human did - but didn't even realize it until many years later, long after it has healed. He remembered banging his ankle on a conveyor belt, knew it HURT but ignored it ... so he wouldn't be one to ask for advice! Thankfully I have never broken a bone, and the only bone that a surgeon ever cut into was my skull, so that doesn't bear weight or ever need to be flexible, and I was too busy relearning things like how to sit up and walk to pay attention to whether it hurt and for how long!