On the subject of "boys will be boys": How about playing war by holding Roman Candles and shooting at each other using garbage can lids for shields? We also used to ride our bicycles hell bent down a hill to a home made ramp with hopes of actually making it over the creek. I don't remember anyone ever making the complete jump but we sure trashed a lot of bicycles and broke a few bones. Good thing we had never heard of Iaido back then ...