Left school and went to work for a high st bank. Late 80s. After a year, a truly dreadful assistant branch manager took over and bullied me relentlessly. I took it on the chin, like you do when you're 19. He picked on me for any minor mistake, things wasn't even involved in.
Within a few months, I looked up the staff handbook, checked my notice period, holidays in lieu.
I then applied to start a business IT degree, got accepted and handed in my notice - which surprised everyone. Within a year, about 5 others handed in their notice, manager sacked for fraud and bully investigated by HR for sexual misconduct.
House of cards, so glad I made the move and I've never looked back. I often look back and think, what if I'd stayed and sucked it up, I would have been miserable. It was the push I needed to move on.