All Or Nothing Or Nothing At All

(I work in a pound shop, which is the UK equivalent of a 99-cent store in the US. Everything in the store costs one pound.)

Customer: “How much is this?”

Me: “It’s a pound. Everything costs one pound.”

(The customer walks away and returns two minutes later with a different item.)

Customer: “How much is this?”

Me: “That’s a pound, too.”

Customer: “Sorry to keep asking, but you don’t seem to have any prices on anything.”

Me: “Everything in this store costs one pound.”

(The customer walks away and returns a few minutes later with yet another different item.)

Customer: “What about this?”

Me: “That’s a pound. They’re all a pound.”

Customer: “Why isn’t anything labeled in this store? You’re all so lazy!”