I went to work for someone who sexually harassed me in my 20's (I was 31 when I took the new role on his new team at a new company).

The next 2.5 years left the deepest professional scars I hope to ever suffer. He sold me on the role and made it seem like there would be positive opportunities abound. Within 3 months, I realized I had been set up to fail. Year 1, I was ostracized and the butt of his team's private jokes. Year 2, I was systematically overloaded with work to get me to quit.