I had a mean attending who I think just wanted someone to pick on, he didn't yell but would always make snarky, belittling comments. It wasn't big enough to warrant going to the admin, and I always think having a private sit-down conversation with someone about their behavior, no matter how tactfully done, is confrontational and rarely ends well. I figured I would just stick it out, so every time he said something, I would apologize and rephrase what he said so he realized how unreasonable he was being. For instance, one day after a long case with him I went in the resident's lounge to get some water. He came in and saw me and said, "why are you in here, you should go help the intern if you have nothing else to do". My response, "I am going to help the intern right now, I am sorry I didn't realize he needed me urgently or else I wouldn't have taken a water break". He said "oh it's fine to take a water break and get a snack, just go help when you're done". I don't know if it changed anything on my eval, haven't gotten them back yet.