I had one a couple weeks ago where, for some reason, I thought it would be a good idea to cut my own leg off. I don't remember how I did it, except that right after I did it, I remember thinking "that probably wasn't a great idea"

(it got pretty vivid here)

The leg managed to stay stuck in place via suction or something, and I was thinking that maybe if I just don't move too much it'll heal back in place. Then I remember I could feel it starting to slide out of place, and I remember distinctly feeling some blood running down my leg from the wound, and my leg started to go numb.

Through all that, I was mostly worried that I wouldn't be able to do crossfit with one leg. I was super relieved to have two legs when I woke up.