We’re all familiar with Godwin’s Law, that “As an online discussion grows longer, the probability of a comparison involving Nazis or Hitler approaches 1.”
Allow me to propose a few variations:
As a discussion goes on, the probability of a theist bringing up Pascal’s wager approaches 1.
As a discussion on gay rights goes on, the arguments against gay marriage will be pared down to “buttsecks is nasty”.
I think it’s safe to say that the corollary to Godwin’s Law applies in both of these cases as well: if you believe in God because you’re afraid of being punished for not believing, or if you think that your distaste overrides people’s civil rights, then you’ve lost the argument.