I was out of the room, so missed this particular gem but I am SO GLAD I did.
Eldest daughter (6): Daddy, there's something I really want to ask you.
Partner: What is it?
ED: Daddy, what's the F word?
P (taken aback): Oh. Um... I'm not going to tell you.
ED: Please, PLEASE, I really want to know. What is it? What is the F word?
P: Well... How do you know about the F word anyway?
ED: Some of the boys were whispering about it at school. They said it was rude. What is it? What does it mean?
P: It IS rude. Very rude. The sort of word that might upset some people if you said it. So that's why I'm not going to tell you. Sorry, love, but...
ED (flouncing away): It's not fair! You never tell me anything! My teacher wouldn't tell me either!
Gawd. Here we go. I'll be expecting, "Mummy, what's the C word?" over tea tonight...