I'm currently coping with a vision problem. I've had them since forever but only learned that I had a real problem when I was busted in Algebra class by the teacher convinced that I was mocking her. It was a different time and Alabama but I was sent to the principal's office and my mother was summoned to take me away. Duckface Davis was convinced I was making sport of her by using the tricks I'd learned to be able to actually see what was written on the chalkboard behind her. At any rate, I just saw this online and thought it was a marvelous bit of idiocy.
Who exactly would combine the use of inches and centimeters and not think it is stupid? Pick one or the other and be done with it.