Customer: “I want to buy some lottery tickets.”

Me: “Okay. Which game, and how many?”

Customer: “I don’t want to give away my secret plan!”

Me: “Ma’am, if you don’t tell me what you want, I can’t sell you the appropriate ticket. I need to know what you want to get it for you.”

(There’s a long pause during which she just blinks at me and the clerks behind me.)

Customer: “… oh. Well, I’ll take two Super Lottos, then…”