The word couch can be replaced with a magnesium vw engine block.
Ahhh the good old days in my back yard when we burned trash in a 55 gallon drum We never had one fly but did have some nice balls of flame. The last one was a full can of Lysol and that ball of fire was about 50 ft diameter and the drum was ripped open. We had three different neighbors come over to see what happened, then hey pounded on the back door to tell my mom. She didn't even hear the fire ball because she was in the basement and both the washer and the dryer were running, maybe even the water pump. Luckily for me she believed it when I told her grandma must have put that can in the bag I took out.
As for the copper in fire, back in my crazy high school days when many of us wore jean jackets daily one kid started turning blue. Mainly his neck and to some degree his forearms. He blamed his jean jacket even though it wasn't new and was quite faded. The blue went on for a couple weeks until after getting off the bus he asked someone if they wanted to smoke a bowl. They went into his dad's garage and he pulled out the bowl he created about a month earlier, made from copper pipe. I don't remember who the other kid was, or how he knew this but he told first kid that copper with fire was poisonous and wouldn't take a hit. I think it took a few days to convince him to stop using it but once he stopped, the blue faded away over the next week or two.
Two years later, I was working in a machine shop and was put on a job welding copper to steel. Who knew that was even possible? IDK, anyway we all were given some kind of large gas masks and there were several fans to blow the smoke away.
