(A man in his 40s walks in to the store. He’s carrying an empty 750ml bottle of bourbon, and places it on the counter.)

Customer: “I want a refund on this bottle of bourbon. It was off.”

Coworker: “I’m sorry, sir, but I can’t refund that one as the bottle is empty.”

Customer: “But I even brought the receipt back.” *waves receipt*

Coworker: “I’m terribly sorry, sir. As the bottle is empty, we cannot refund it. If I may, sir, what made you think the bottle of bourbon was off?”

Customer: “I drank it last night and it made me throw up.”

Coworker: “I am terribly sorry for that, but what happened to the rest of the bottle?”

Customer: “I told you! I drank the whole bottle last night, and it made me feel dizzy and throw up! It was clearly off!”