LOL what a dummy! We heathens done the same thing as kids – would swing as high as we could get, jumped off the seat and then landed on a hill sloping downward and rolled all the way down LOL – surprised we didn’t break any bones doing that but I guess kids can be more resilient.
Obviously he could have gone the other direction and been fine. The challenge was jumping the fence. I’m pretty sure I did that or more as a kid as well. How we survived riding our bikes without helmets I’ll never know. Went over the handlebars many times Superman style.