As a guy who cuts and paste what other people say

I agree with this:

As a psychotherapist and someone who treats people with anger management problems, we typically try to educate people that anger is often an emotion that masks other emotions. I think it's significant that McCain didn't make much, if any, eye contact because it suggests one of two things to me; he doesn't want to make eye contact because he is prone to losing control of his emotions if he deals directly with the other person, or, his anger masks fear and the eye contact may increase or substantiate the fear.

I noticed him doing the same thing in the Republican primary debates. The perception observers are likely to have is that he is unwilling to acknowledge the opponent's legitimacy and/or is contemptuous of the opponent.