Well maiming yourself is hardly new for youngsters. When I was a kid we made our own glider out of firring strips and cardboard and such, it came apart almost at once after launch, the pilot,(me) was then treated to a long drop down into the concrete and brick section of the dump! And as for our submarine, its rusting remains still lie at the bottom of the Paper mill dam, thankfully without it's Captain,(my bud, I learned from the glider). These were but two of many adventure's and how we lived to maturity is still a mystery.