Me: “Hi, what can I get for you?”

Customer: “Can I get a 16 oz. coffee in a 12 oz. cup?”

Me: “No. We can’t do that here.”

Customer: “What are you talking about? They do this for me every time I come here!”

Me: “I’m sorry, but there’s no way we can put 16 oz. of coffee in a 12 oz. cup.”

Customer: “Yes you can! You’ve always done it!”

(The customer’s friend was standing next to her at the time.)

Customer’s friend: “Um, I think you meant a 12 oz. coffee in a 16 oz. cup.”

Customer: “… ooooh. Yeah, that’s what I meant!”

Me: *facepalm*