Abuse Always Starts that Way –

First approach of a ‘different’ idea, response is a thought: I don’t agree with you, so I will just dismiss you and what you say.  Verbal response is placating.  Second approach “I told you, I don’t like the way you think, so stop talking to me about that.”  Third approach “Are you stupid?”  Fourth approach, heatedly “You are stupid, I already told you, I don’t like what you have to say, do not say it anymore.”