Clementine, a young caller from Omaha, Nebraska, wonders why we use the term run-of-the-mill to describe something ordinary. The expression originates world of manufacturing, where a run of the mill is the entire run of things being produced, whether it’s lumber or bricks, including defective products. This sense of the word run as an overall production process also appears in the expression run of the mine and run of the kiln. (In the process of discussing this last one, we’re surprised to learn from each other that’s there’s more than one way to pronounce the word kiln!) This is part of a complete episode.