The "12 items or less" aisle at the supermarket is for shoppers who are planning to purchase 12 items. Or less.
14 is not 12.
18 is not 12.
13 is not 12, but I'll let it pass since it's pretty darn close.
The other lanes are for shoppers that have more than 12 items.
Yeah, that's right Mr. Can't Follow Directions. The patrons behind you noticed that you had 18 items in the "12 items or less" lane.