I have been at a merit badge class where a man sawed a bar of uranium (in his basement). I have also gone camping with my Boy Scout troop at the mouth of uranium mine, and I have done extensive spelunking therein. "What's that pile of black dust on the floor? Why does it taste like metal in here? Ouch, what just bit me? Do bats have rabies? Is that a stick of dynamite protruding from the wall? Yes it is! Let's throw rocks at it!"
It's amazing that the death rate among Boy Scouts isn't much higher. "Hey, lets roll boulders down the mountain towards our camp! I've got an idea, lets huck sticks at that moose!"