Overly Expressing Herself

(I am the cashier for the express lane of the store. The express lane has a clearly posted sign that says twelve items or fewer. Unfortunately, a lot of customers come through with as many as twenty items. I still check them out, but I ask them to take larger orders to the regular checkout lanes in the future. In this case, a woman brings about 20 items through my lane.)

Me: “Ma’am, in the future, if you have more than 12 items, please go to one of the regular lanes.”

Customer: “No.”

Me: “No?”

Customer: “Express is faster.”

(I just stare at her as she pays for her groceries and leaves.)

Next Customer: “No shame.”

Me: “Yeah…”