Slicing a bagel, friend tells me too look at something, looked up, knife went into my thumb, needed 7 stiches.
Decided to backflip jump first hit, realize the lip had been reshaped and cut down, got caught in the air, broken thumb with that needed surgery, 3 pins and a cast for two months.
In 2nd grad my friend got a new bike that had pegs and mine didn't. So we were riding down a hill and he was standing on his pegs no handed so I got jealous and wanted to show him up by standing up on the seat of my bike. Obviously I didn't make it very far and crashed but got lucky and just got cut up pretty bad.
Not me, but in third grade my friend was learning to ski and didn't know how to stop and skied into the woods, so his mom decided to ski down to help him and in the process fell on my friend and broke his leg.
The same friend was sledding and decided he would try "off road sledding" down some sketchy path and ended up going over a cinder block and literally tearing a chunk of his ass out.