You are in the process of cooking something. You realize you are missing an essential ingredient. You run to the grocery store to pick up the item, get on the express line and realize that the woman in front of you has way more than 12 items. The sign says, "12 items are less."
What do you do? All the other lines are longer/more crowded.
Do you wait patiently? Do you say something? Do you personally carry more than 12 items in the express line?