My mother on spanking me even if I had done nothing wrong: "It's what Jehovah wants me to do."
Another hilarious one: One young nerdy JW, whose own father was the Elder conducting the Watchtower study article for that week, pops up with his answer to young people and their morality: "I don't listen to pop music, it's the beat of sex."
No one laughed, at first, until the father Brother M-- says rather embarassed, "Well, that's my boy."
Okay, this one didn't really seem that funny on the screen, I guess you had to be there.