Has reappeared at my new job. Just on a freelance basis. Not in the office. She made my life absolute hell in my previous job during a really difficult period of my life (she was my line manager and knew what I was going through outside of work). I thought I would never have to deal with her again. Should I say something? I'm not sure even if I did that it would make any difference to whether they would keep hiring her but I also worry that if I don't say anything they'll keep doing it. The only thing that is stopping me is I'm concerned it may somehow reflect badly on me to be seen badmouthing her??