@ DJS: he can't see anything but straight lines and he can't think in any manner other than black and white
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Which is why he simply ignored the answers I was asking him to give. The question was simple, the answer probably simpler. But this is what happens when a theist has to actually explain his beliefs- suddenly he realizes, a) he's got no answer at all (because he's never thought about his beliefs on anything but a naively childish level before) or, b) his answer will make no sense to anyone with even two functioning brain cells.
So, his only alternative is to ignore the question altogether, fake being offended, then question to character and motives of the person who had the audacity to ask him to explain why he holds the beliefs he does.