I did kind of an internship for a week at a crematorium, to try and see if this was for me.
Didnt show up after three days. Everything was so grotesque. The system works with conveyor belts, so you have several halls where the casket is lain out, and when the ceremony is over, it just gets driven by the belt through a small door and in some kind of waiting line. The belt system was super old and didnt work well, so sometimes caskets would stick out at the sides and get stuck at corners or something, and every day at some point a casket rush hour started and several caskets would get stuck behind each other. One time, one of them even fell of. It didnt open, but we needed three people to lift it up the belt again.
When caskets are burned, there is always some ash and bones from other people mixed into it. You need to fill everything from the oven into some kind of mill where the bones get ground. Everything smells horrible, your coworkers are the most insane bunch of middle-aged cynics, it doesnt pay good, the bodies of people are just annoying pieces of material after a few days.