(We keep lids for our yogurt cups behind the counter and ask each customer if they need one when we give them their order.)

Me: “Would you like a lid for that?”

Female Customer: “No, thank you.”

Me: “Alright, have a nice day.”

(She continues to just stand there after I walk away.)

Female Customer: “Fine! I guess I don’t get a lid then!”

Customer’s Boyfriend: “You just told her you didn’t want one.”

Female Customer: “Oh yeah…”

Me: *facepalm*

Related:
Zero Short Term Memory