I had one that got so bad, I quit mid-year. She started coming into my classroom, telling me how to teach while I was teaching, sometimes she would just take over ("here, let me show you"). She started doing my lesson plans for me and telling me what I could or couldn't put on the walls. No, it wasn't my first year. It was actually my 3rd year working under her. She never did any of this prior to that year. She loved everything I did and trusted me and always sent other teachers to me if they needed any ideas. So I don't know what changed. Then she got really mad I took 2 days off for vacation, which I had already gotten approved from the people above her. So I said, "okay, here is my notice, I will not be coming back after my vacation"