When my class went on a hike in grade 6, I lost my footing going up a rocky path and I got a large gash on my right shin. I probably should have gotten stitches (it was about 7 inches long but not very deep), but I ended up just getting it cleaned up, wrapped a bandage around it and caught up with the group 10 minutes later. I have a nice scar to prove it!
I am also fortunate that I was born into a family with very strong bones. I've had family members get in major car accidents, or get hit awkwardly while playing sports, and they weren't seriously injured. Even 2 years ago, my dad even fell 15 feet through a weak platform onto concrete, which is a fall that could seriously injure you or even kill you. All he came out with was bruised ribs, and was back to work 2 days later!