Yeah, actually.
The second worst was in-house marketing at an Oil & Gas services company where years long difficulty with the son of the owner, an extreme level or boredom and unfulfillment lead to a full on nervous breakdown at work that cost me my job and a good chunk of the life I had built for myself.
The worst was working on my father's shrimp boat as a deckhand at 15. The job was from 5am to 9pm and the work was mostly sifting through literal tons of shrimp by hand to sort out all the non-shrimp while fighting with crabs and aggressive seagulls during sweltering Texas summers for no pay. The smell alone... I still won't eat fish 30-ish years later. The first few days I was beaten for being too slow until he decided the improvised rope whip wasn't working well enough. He let me finish the most recent drag (the net is dragged and pulled in 4-6 times per day) and then threw me overboard, tossed out a short rope, and kept going with me holding on for dear life until it was time to bring the net in again, which was about 45 minutes. The only money for the entire season was from soft shell crabs I collected on the side to sell at the fish market, but he took that money too once they started giving me a decent rate.