Call it the local lane

New rule: Anyone clutching a copy of the supermarket's in-store circular is not allowed to use the express lane, because he or she will invariably try to argue about the price of something, leading the cashier to have to use the phone, and eventually word will come from the mysterious voice on the other side of the phone that the special price is only valid on the 3-pound size, not the 40-ounce size.