I believe you did the right thing leaving immediately and not wasting one more day with that one. I'm sure a great part of it has to do with me as a person, but also what you mentioned is a great part of it, when you're dealt with as if you're "an idiot" or like you simply don't matter, or like you have no other life apart from your job and you're expected to work all day. Again I know it varies depending on the kind of job, the line of business, and many other variations.