I had a boss who likes playing the 'you are insulting me' and 'ad hominem' cards. Whenever we do not reach a common ground on something and I raise the points with him, he will ask if am questioning his intelligence and capability, which implies am insulting him. Then, he'll leave the issue at hand and focus on attacking the person involve.
After working with him for 3 months, I felt I wasn't given the room to explore my thinking and be creative, so I shut down and resigned. I hate people who are like that.
Indeed, no paycheck is worth that misery.
That should be the best decision you ever made.