(On the phone)
Me: Hello, Ripping Yarns.
Customer: Do you have any mohair wool?
Me: Sorry, we're not a yarns shop, we're a bookshop.
Customer: You're called Ripping Yarns.
Me: Yes, that's 'yarns' as in stories.
Customer: Well it's a stupid name.
Me: It's a Monty Python reference.
Customer: So you don't sell wool?
Me: No.
Customer: Hmf. Ridiculous.
Me: ...but we do sell dead parrots.
Customer: What?
Me: Parrots. Dead. Extinct. Expired. Would you like one?
Customer: Erm, no.
Me: Ok, well if you change your mind, do call back.
Found here.