This thread is a 'hoot'! I've laughed 'til my sides are aching. I've done a lot of the mentioned things. As for the M-80s, I always considered cherry bombs more powerful. In 10th grade, one class was two floors above the school office. We used to try to drop firecrackers and cherry bombs out the window, when the teacher wasn't in the room, and make them explode at the office windows level. One guy held one a little too long. Blew up in his hand. Lucky for him it wasn't a cherry bomb! A friend and I were laying .22 bullets on the ground and shooting them with bb guns. After setting off several, one of them that I shot, sent the hull/case back and hit me in the forehead, rim first. I didn't feel it! George looked at me, said I was bleeding from my forehead, and ran like the devil was chasing him. Scared me! I felt blood running down my nose and dripping. I took my handkerchief from my pocket and wiped my forehead. The handkerchief was soaked with blood! I ran home, thinking I might bleed to death before I could get there, or that my brain was punctured with the bullet. Mom and Dad were still at work. I ran into the bathroom and looked in the mirror. I only had a small cut, T-shaped, about 1/4 inch, by 1/2 inch. Just a 'groove' in my forehead. I did a lot of stupid things, but now at 72, I still am amazed that I'm alive.
One of the things that was fun/scary, was 'booger' hunting. Mom and Dad got home from work about an hour after I got home from school. A neighbor friend and I would get a butcher knife each from the kitchen and go hunting for boogers down around the barn. One day Dad 'got it' what we were doing. He sneaked up behind us, took a 6' long 1" X 4" piece of lumber and whacked it flat against the metal barn wall; about 6 feet behind us. Mike never looked back. He was at his house, almost a block away, in about 2 seconds. I started running too, but looked back and saw Dad leaning against the barn laughing so hard he could hardly stand up. Also once while in the house, booger hunting, I had one of those little wind-up motor boats in my back pocket. I was leaning against the door and the thing started up, the prop hitting the door. Mike, again, was Gone!!