my boss at the lab seriously used to be in a (pentacostal) cult. she was telling me ALL about it this morning. then, later, we were talking about our favorite movies and someone else mentioned monty python and the quest for the holy grail.
my boss: i've never seen that. me: but it's a cult classic!
oh, man, she laughed so hard at that. thirty minutes later and she's still laughing about it.