Proverbs 12:15 The way of the foolish man seems right to him; but the wise man gives ear to suggestions.

I liked that.

If doubt and uncertainty are signs of intelligence then I must be Einstein.

This article brought back to my memory a situation that happened to me on another board when a couple of guys that I was going back and forth with came back and both said in absolute honesty that they did not care what the facts were. That the facts were unimportant to them. I was gobsmacked. I had no idea that it was even possible to not care what the facts were in any situation.

Then a day later I read this post over at Balloon-Juice and it helped explain their mindset to me a little bit.

But it goes to your question “What do you* do when a D-K-er refuses to be taught how to work the logic puzzle?” and as far as I know there is not a damn thing you can do when a person is not interested in facts to help them draw a conclusion.