I agree with the sentiment, but how can you know to trust someone's advice if they're acting in a way that's obviously very socially stupid? (I'm not huge on excessive politeness, but I think it's quite stupid to be aggressive for no reason. What purpose does that serve? Why should I trust the advice of a person that acts that way?)
I assume by treating their argument in a rational non-emotional way...
if you tell somebody something while slapping them in the face, don't be surprised if the only thing they remember from the interaction is the slap.
on the other hand, sometimes people need a good kick in the ass, so who the hell knows!
Ever read Stuart Sutherland's Irrationality?