The moral of this story is to be nice to everyone because you never know who you'll end up working for. Look, I get it. There are people I work with that I'd rather never see again. But life is arguably pretty long, and you might be surprised at who you'll potentially work with, or rather, beneath. OP had one of those supervisor's who simply despised him. Maybe he reminded her of an ex-boyfriend, or maybe she was jealous. I'm gonna vote on the latter, as OP was extremely good at his job, despit…