Sometimes its fun actually

(This couple had a very thick accent, perhaps German, I'm not sure)

Customer: What is this Pride and Prejudice and Zombies?
Me: It's Jane Austen's classic Pride and Prejudice re-written as though zombies were a regular part of life when she wrote her books.
Customer: Oh. My daughter likes these Jane Austen take off books.

The customer proceeds up to the sales counter and we ring him in.

Customer: So what is a zombie?
Me: Ummmm... Like in Night of the Living Dead? It's a undead creature.
Customer: Like a vampire?
Me: Sort of, zombies eat brains though and are more mindless shuffling monster types than vampires...

This went on for a while with me trying harder and harder to explain what a zombie is.

This couple was very very nice and their question was obviously due to a language/culture issue and not stupidity or down right meanness. However, it was funny and became more and more so because we had such a hard time trying to explain. Have you ever had to try to explain something that you've just taken for granted that everyone knows and you've never really thought about before? You know what I mean then.