Damn thats pretty impressive!, I get quite a lot of injuries myself, but usually its just a rather deep cut or a burn, etc that will fix itself up. (terrified of doctors lol) Best I managed was to but the very tip off one of my fingers and mangle up the skin of the back of my hand using a machette in the dark cutting kindling for the fire.

Even without injuries it took me 2 months to put up a damn clothesline laugh