I've seen it happen

Jungle Gyms are perhaps the worst place for kids to play around. This video is an example of how things can go bad. For me it happened when I was in Kindergarden. See it made a ton of sense to put a 20 foot metal rocket ship type structure up in the jungle gym area which you could climb to the top of . Remember, it was all metal, no cushion or nothing. Well me and my friend climbed to the top and when we got to the top he slipped. His head hit ever rung of the metal that we used to climb up. Then he landed nice and softly on the ashpalt on the ground. Needless to say we had to call the ambulance in and have him taken away. To this day I can still see his head hitting every rung on that metal rocket. But he lived.