The thing is, I'm not a dog, but a person, and I am actually quite willing to listen to people I disagree with as long as they are polite and reasonable.
There's listening, then there's listening. When someone is really learning, you are dealing with the edges of their model of the world and their conscious perception. When you are really teaching, you are playing in this dangerous interstice. Sometimes, the best way of teaching people is tricking them. Sometimes, if you just tell them, they'll just rationalize what you have to tell them away.
This is more apt to apply to classes in history than to computers, however. Even then, there are popular misconceptions to deal with.
Mark 4:10
When he was alone, those around him and the Twelve asked him about the parables.
Luke 8:10
He said, 'The secret of the kingdom of God is granted to you.'
Mark 4:11-12
'But to those on the outside, everything comes in parables so that they may look and look but never perceive, listen and listen but never understand.'
