You've been through a lot of stuff, Joker. Let's hope you've got rid of the bad luck.
My worst injury was a cut. I was speedskating (you know, going round and round in circles with knives under your feet) and fell. I was doing about 30 mph when I hit the safety cushions. Unfortunately, I forgot to lift up my legs, so one of the skates cut into my other leg, right above the ancle. First I thought everything had gone well, but then I saw the wound.
It was about the size as the back of your fist, and you could see straight to the bone. Funny how you can't feel anything when all the nerves are cut straight through :/ Of course, it started bleeding like hell, and the ice around my foot was pretty red after a while. Fortunately, the ice cooled down the wound, and the paramedics arrived pretty fast. At the hospital, they sewed it back together with alot of stitches (i stopped counting after 20)
Today, three years later, the scar is still 5x8 centimeters wide, and completely numb. *shivers*