Customer: “Excuse me, when does the non-smoking sign go off?”

Me: “It doesn’t. You’re not allowed to smoke on this flight.”

Customer: “But it’s lit up! The seatbelt light turns off, and I think I need a smoke.”

Me: “You’re not allowed to smoke on an airplane.”

Customer: “I can’t just go outside and smoke, can I? *points to an emergency exit*

Me: “Er…good luck with that….”