(We are closed and counting money from the register, when a customer approaches the locked door and tries to open it. She notices the closed sign and tries the door again, then knocks on the door loudly and pulls hard on the door. So hard in fact, that she manages to fit her shoe through the crack. Worried about a broken door, I open the door quickly.)

Customer: “Are you open?”

Me: “No, we are closed.”

Customer: “Then why did you open the door?!”