I worked at an aluminum wire processing plant years ago. We had lots of things that could snatch limbs off, crush and just kill the HECK out of you. Watched one guy get his arm ripped off by a piece of equipment called a motoblock. It is a BIG vertical spool that draws wire into coils while pulling it through a sizing die. Example: 1" wire going into a die that's probably 5" in diameter, 3" thick. 1" ROUND on the input side but 5/8 HEX on the other side. You can imagine the force that's required to do that. We kept tellin the guy over and over he was standing too close to the wire. A coil got wrapped around his arm "at speed" and that's all it took. It snatched him right up and into the spool. The only thing that saved his life is what stopped him and ripped his arm off. A guard right before the spool to keep people from being dragged in. I got the guy off and wrapped what was left of his arm up and tried to control the bleeding. One of the other guys got his arm out and packed it in a cooler. They reattached it, but it didn't take and they had to remove it permanently. There are some people who are too stupid to have jobs like that. They'll ruin it for everybody else. It's called common sense.
