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.
When I was younger I was offered a gig to help disassemble an abandoned cottage by hand. Turns out it had burned from the inside when a fire had spread from the fireplace - somebody had went inside to try and keep warm in the winter and ended up burning themselves and the cottage. What adds some spice to the story is the fact that in the past the cottage was a “troll’s hut” funfair kinda thing where kids, myself included, went to meet the “forest troll” and do some drawing etc.
Had nightmares about it for quite a while.