Dr Ratio, or Dr Veritas, whatever you want. Someone so smart and self-confident, who hates stupid people. Clearly he has to be perfect, so much so, that no one has ever told you that he don't smoke.

You're always smoking next to him and it drives him crazy. Doesn't he have to tell you that smoke disgusts him, not satisfies him? It stresses him out more than it should. You disgust him.

He crosses his arms, while closing his eyes and growling, there you are, smoking next to him as always. A vein is going to burst from so much stress.