I'm not asking about the worst job. I'm asking about the grimmest one. For me it was when in my teenage years I was making candles you would put on a grave. Most of the time is was just filling the form, burn the right shape and passing it forward. But sometimes I had to fill in for a person who was selling these things, and that is where it gets grim. It was decades ago but I still remember one lady who asked what would be the best candle to memorialize her late husband. And she gave me the whole life story of her and her husband. I shit you not, it was the most touching love story I have ever heard. I quit the next day.
Worked security at a hospital, and was responsible for signing corpses over to the funeral homes. One week, there was a car wreck in a nearby small town- a pickup truck flipped and rolled with five or six teenagers in the back. I spent the whole night rolling them out of the freezer and passing them off to various funeral homes.