When I was a freshman in HS a friend introduced me to this guy, who was a junior, and we dated for a while. Problem was his parents were born-again Christians and thought that I, who attended a Catholic school, was unfit for their boy. So the only way they'd let us go out was if we would first attend one of their church services. This restricted our dates to Wednesday or Sunday, at least as far as they knew.
So the first time he took me to Wed. night service, I'd never been to that kind of church. Seemed nice at first, a little cheesy compared to what I was used to.
Then in the middle of the service, this woman stood up and started spouting gibberish at the top of her lungs.
I looked at my BF, eyes round as platters, certain that this poor woman was having some kind of seizure and baffled that nobody was coming to her assistance. He whispered, "they do that here," and "I'll explain later." It was all I could do, then, not to burst out laughing, but somehow I managed not to. I still don't know how I did it; I was fourteen, after all. You know how giggly young teen girls can be!
When his parents told me my Catholic Bible wasn't "a real Bible" I sort of lost interest in ever trying to please them. Oh well, new boyfriend a couple months later.

Great story to tell though.