The powers that be let her do their dirty work for them. Its no accident. She has friends in high places - in my case, my nemesis' brother was a lawyer, so she was never going to get fired, as she tortured coworker after coworker. That it is psychologically trying for you - is not a reason for the u to accommodate you, but an opportunity for you to show the u how you solve or deal with a difficult situation. With the least involvement.