Crypto-Atheists

The idea scares the hell out of me: namely, that
one of the people in my congregation is an Atheist
masquerading as a Christian for social advantage
(or sexual advantage, for that matter).

Is there some tried and tested method that allows me
to determine whether or not a person is a true believer?

>>20 etc.
My point in being so anal retentive was not actually to point out the fallacies in >>17, which are obvious enough that I'm assuming he was joking when he posted. My point was that the quality of thought on what is supposed to be a programmer's forum has gone to fucking shit. For that matter, there are trivially observable logical fallacies in every post from >>20 to >>24. How do you people expect to be able to construct coherent computer programs when you are so evidently incapable of formal logic? Do you think it's funny to act stupid?