the right tool

Back in the mid/late 70s I did design work for a company that manufactured heavy equipment parts and accessories that made digging in the dirt easier. This was during the beginning of the attempt to change the USA to metrics. We had to double-dimension all of our design work.
One day our manufacturing manager came in and we jokingly asked him, "Robby, how many thousandths in an inch?".
He stood there thinking for awhile and finally (perfectly serious) said, "They're so tiny. There must be millions of them."
Of course his view on metrics was "We use inches here in the USA, let the rest of the world change to how we do it!".