Here's an example of the constructive style of logic train by Conor Friedersdorf of the
I disagree with most of the logic and reasoning of the article as Conor takes a progressive view, but I like the article because of it gets to the thoughts animating the actions. It is something that can be discussed over the dinner table and allow the participants something to base their person convictions on.
Merely, shouting "He's a liar" whether true or not, is discarded or ignored by most listeners. "He's a liar, because x, y, and z" can capture a mind and opinion.