Where to start...
For starters, I have been the designer and engineer of the absolute worst bike jumps and skateboard ramps ever built by human hands with spare wood. No question.
Rock fights. Damn... who would even think this would start between freinds?
The mandatory BB gun wars, Bottlerocket fights and the like, but the same perverse mind that is bringing you the Revolution also brought to my neighborhood the...
"Mosquito model rocket Bazooka" with electric start and an M-80 warhead ignited by the model rocket engine.
This bad boy was good for a solid 100 yard accuracy within 3 or four feet, and while it was certainly a two man crewed weapon, the results were devatating and very demoralizing to the kid holding only a bottle rocket to return fire with.
And my coup-d-gras, and an obvious harbinger of my future as a SEAL was the variety of oxygen-acetylene bombs set off as a late teen. Everything from 1 gallons to 33 gallon poly drums, and everything destroyed from mailbox sized targets to a 1967 Volkswagen squareback that was trashed, stripped and abandoned pretty close to our chosen demo range.
I am so lucky I have ten fingers...