As a kid we used to swing on vines, my paps place has a lot to swing from. We had to cut down a a medium sized sapling because it was in the way when we would swing so we cut it down with a hatchet, leaving a nice "pointed" stump. Me and my buddy were swinging on the vine together when the vine broke, we both managed to miss the pointed stump by inches.
We used to jump trains a lot too, after school we would walk the tracks home, if a train was coming past slow enough we would hop on the back and ride it home.
Taking all of the powder of out a bunch of fireworks and adding it all into a big pile, held a lighter over the pile and lost my eye brows.
Riding on the tailgate of a truck up my buddies lane to his house, lost my grip around a turn and fell off. Barely missed hitting my head off a large rock.
Shot an arrow into the sky one time, came back down and landed on my parents roof, had fun explaining that one.
As a parent now, I find it hard to let my child, "Be A Kid" because I know all of the things I did when I was younger.