I have 4...
1.) 19 years old, got run over by a pickup , broke both legs (right femur, left tibia)
2.) Rehabing after said broken legs, femur was rodded internally, doctor said no weight bearing, left leg casted. Was on parallel bars, physical therapist told me to put my weight on right leg, I objected, she yelled @ me, thought she knew what she was doing, I put maybe 20 lbs of weight on the leg & passed out for about 3 minutes from the pain-only time I've ever passed out from anything.
3.) Cycle wreck, car turned in front of me, broke 7 ribs, collapsed left lung, right humerus compount fracture-where the bone sticks through the skin. I was wearing nearly $1K worth of protective gear (body armor, helmet, gloves, wasn't wearing ccyle boots & I think I broke a toe too, but it was pretty minor compared to having a chest tube placed to re-inflate my lung) I was on my way back from teaching a MSF advanced course-my ortho doc got a big laugh out of that🙁
4.) Kidney stones.
PSA, don't get hit or run over by a car, don't ride cycle, ignore physical therapists if you think they're wrong, and drink lots of water.
Since they cranked up the freking metal detectors after 9-11, I get wanded minimum when going through the damn things, have had to show my scar a few times.