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.
Not mine, but a friend of my dad’s would talk about the time he was an “asshole bagger”. He worked in a slaughterhouse, and his job was to cut a circle around the anus and pull up all the bits that might have poop in them and bag them up. He lasted a day.