It was easier

Try to top this true story.  A guy came in our plastics shop in July to buy a piece of plastic 15 by 27.  So, we cut him a piece of plastic 15 inches by 27 inches.

He looked at the plastics and said "It's too big. It's supposed to be 15 inches by 27 centimeters."  I looked at him and I said, "How did you decide to measure in inches one direction and centimeters the other?"

He said he had a tape measure that reads inches on the top and centimeters on the bottom. When he measured the top, it was easier to read the inches and when measured the side it was easier to read the centimeters.

I was NOT expecting that.

A friend recommended that we charge the guy the same per square centimeter as we charge per square inch.  If he complained, just tell him it's easier that way.