I’ve dislocated my knee mid punt. In doggy and my kneecap got caught in a soft mattress and out it came. Somehow managed to finish (the whole pleasure/pain thing helped here) and sort of rolled off the side of the bed and put it back in place (if you ever dislocate a knee cap don’t try to hit or push it back in, try to pull your foot up and kick and it will go back in).

Limped to the shower and needed some help getting my shoes on afterwards. Was out for a few weeks to let it settle down