(A customer walks in and slams a bag down on the counter in front of me.)

Me: “Yes, can I help you, sir?”

Customer: “Yes! I drove all the way home and had to come all the way back here! That young lady right there said my mozzarella sticks were in this bag, but THEY’RE NOT!”

(He points rather exaggeratedly at the girl in the drive thru. I look calmly down at the bag, then up at the customer.)

Me: “Sir, this is McDonald’s. That’s a Burger King bag.”

(He then looks down at the bag and slowly back up at me.)

Customer: “Oh.” *picks up bag and runs out the door*