Yeah that Karma thing. One Christmas when I was in high school back in the early 60's, 3 of my buddies and I were riding around throwing cherry bombs. I drove by one of our male teacher's home whom we didn't particularly like and the plan was to toss one on his yard. The guy in the back seat didn't get it out of the car. He yelled firecracker in the car. I put my elbows on the steering wheel and covered my ears. I found out where it was then. It was between my back and the seat back. It blew a big hole in my London Fog jacket, a big hole in my shirt, and t-shirt and burned an area on my back about the size of a silver dollar. Not to mention what it did to the car. I stopped and pulled out some burning cotton from the hole in the seat. When it went off it felt like someone hit me in the back with a baseball bat. Those old cherry bombs had some powder!