Here's a place to post your story of theists being humorously oblivious, un-self-aware, or cognitively dissonant. I'll start off with one of my own.
Yesterday I was driving around my mother-in-law and brother-in-law, both of who are Mormon (though my brother-in-law is a very bad Mormon). They're both involved in theater, and somehow the topic got onto theater superstitions - not refering to Macbeth by name, not whistling in a dressing room, not saying the last line of the play until opening night, etc.
They were saying how they don't really believe in those things, and my mother-in-law said "let's face it, I'm just not a superstitious person". I had to bite my tongue and focus on not guffawing or driving off the road. Then my brother in law started explaining why the Macbeth curse is just confirmation bias...I wondered why they couldn't apply the same skeptical eye to their own superstitions, but I didn't actually ask it outloud - I'd prefer if my wife didn't kill me, after all. ;-D
So, how about your stories?