Server: “What can I get for you to drink today?”

Customer: “Diet Coke.”

Server: “Is Diet Pepsi okay?”

Customer: “No, I want Diet Coke.”

Server: “Well, we only carry Pepsi products.”

Customer: “Fine, then! I won’t drink anything!”

(Whatever floats your boat, lady. It doesn’t make any difference to me whether or not you drink something.)