You sure you didn’t live in my neighborhood? My buddy and I spent many hours unrolling thousands of Black-Cat firecrackers to harvest the powder until we got a large jelly jar packed full and twisted a bunch of fuses together and stuck it in a small hole in the top sealed with silicone…..We set it off in his fathers brick grill and the blast was “atomic” complete with a huge mushroom cloud….It was hard to hide the damage to the back wall of the BBQ grill and we both stayed inside for about a week……I’m not sure if our parents didn’t know the stuff we were doing or didn’t care, I’m hoping for the former but I’ll never know……Funny how little boys and explosives are a natural together, heck even God liked to blow stuff up when he was a youngun……