Was Ice camping back when I was was in the boy scouts, had to help carve out the kitchen. I had my ice ax and was cutting through some compacted snow, hit it too hard and sank the bottom tip if the ax into my Knee, ow, that hurt. Checked my pants to see if I was bleeding, didn't see any (was wearing 4 layers of clothes) and I only saw a hole in the outermost layer of clothes, so I thought it had just stung, no wound, wrong. That Night I took off my shoes to go to sleep and the liner sock, wool sock, and the two layers of longjohns from my right knee down were SOAKED with my blood. Turns out I did hurt myself, wound was small enough that I didn't need stitches, But I still have a triangular hole in my right knee. Worst part though? halfway through the day (after ax) my right leg felt really warm, and a little wet, so i was like "did I just piss myself?" my thigh wasn't wet, so I ignored it. I was a smart kid.
EDIT: Persondude reminded me of something.
I was Ten years old, and biking with some kid from my street (he was a prick). We decide to race to the end of our block, all was going well, then dumbass decides to pull a no hander, except he doesn't know how to do one and his bike turns in front of me, I T-bone his bike, front flipped over,and skidded a foot or two. So I'm under both of our bikes, Missing almost all of the skin off of my left arm, and some meat off the right, and this fuck, who had a skinned knee runs home and leaves me. the lady's house we crashed in front of was nice enough to pull the bikes off of me and offer to take me home, I declined, and walked home.
Bad end: His bike was fine, my right handlebar had broken off (<--why I was missing meat on my right arm), no more bike for me (frowny face)
Second edit: read page two, memories etc.
Was twelve, playing baseball after school, was up to bat. I Swung, and unbeknown to me, it hit the top of the bat, and flew straight up, and after hearing "Above You" I did the only sane thing a sane person would do, I looked straight up, right in time for the baseball to slam into my face and break my nose, luckily I didn't loose any teeth.
Jesus Christ third edit: went in the kitchen, etc
Was eight, grabbed the casserole dish lid to put it back on, was hot and dropped it, and I freaked and ran across the broken pieces of lid. sat crying on the washer while my mom removed glass from my feet.