I once got a new boss who was one of these power trippers. He and I didn't get along. But I was making my customers happy and I was making his boss happy; my job was completely secure.

At review time he told me in a very condescending tone "I just don't think I can recommend you for a raise this year."

My response was "Oh good. That means I can do whatever I want."

Nobody had ever said that to him before. Shortly afterward he took a leave of absence for mental health reasons.