I kinda regretted reading this thread, but I kept on reading it nonetheless. Curiosity killed the cat. Though the OP had an interesting story. I really had no idea that stitches can be so durable and that they can penetrate through the skin. Weird.
Anyway, I have one weird thing that I never understood. One evening, I was playing around in my room and bumped my head on the floor. I felt slightly dizzy afterwards and my eye was a bit blurry but it passed almost immediately. However, maybe half an hour later, I felt dizzy again and went to lie down on the couch (mom wasn't home). As I was lying on the couch, I suddenly started feeling the fingers on my right hand going numb. It started with the pinky finger and then went further; it never numbed more than two fingers at once. As it got to my ring and middle fingers, my pinky was no longer numb. And for the next hour, the numbness went through my hand like that, until it got to my thumb and disappeared. I had a kinda strong headache during the whole time, and when my mom came home, I went to vomit, but I didn't vomit after all. Got to sleep, woke up next day; everything was fine, never experienced something like that again. Maybe it was a concussion, but why the selective "travelling" numbness of the hand? I had a small concussion when I was very little and the result was vomiting three days, no numbness or anything.
Another was recent and it was a really bizarre self-inflicted injury. I was shaving my armpits and I used the epilator, but I put the head for cutting hairs because pulling them hurts. I did that many times and I am always careful when I shave my armpits because I have a scar on my left armpit from a surgery that I had almost immediately after birth. But this time, I guess I was temporarily retarded so I cut through the scar, right through the skin, in half. Besides the blinding pain and blood, I now had little flaps of skin just cut in half there, so I had to carefully cut them away further to prevent them from getting stuck in clothing or something. Fun fun fun. I still have no idea how I managed to do that. It healed quickly though, but for a few days, it was really painful and I had to work on a dig so I was sweating and needed a deodorant, but putting it on the wound was painful and it hurt while I worked. Really a great timing to do inflict such an injury to myself. I guess I should consider myself lucky for not getting some infection.