(I work at a fairly indie bar. We have a lot of real ales on tap, which we serve in special old-fashioned mugs.)

Me: “Here you go,sir. One [name of ale].”

Customer: “This mug has a short straw on the bottom.”

Me: “That’s okay, I can take it off.” *moving to pull it away*

Customer: “Nah, you can leave it on. I want to start a new fashion trend!”

Me: *laughing* “Okay, I’ll leave it for you. That comes to [total].”

Customer: *hands over money* “Actually, I better take it off. The missis might get jealous I started a new trend and she didn’t!”