Long story short, I had a psychopath for an adviser. Shifting to a different adviser was not possible at the time, and so I ended up just leaving the program as I was on the verge of a mental breakdown. I think I can explain it pretty easily in an interview, but I'm just not sure how to phrase on my resume. Right now I have something like, "Pursued MS in xxxx at State U. Left voluntarily for personal reasons," but I am not satisfied with that. What are your suggestions?