[bryanlarsen]

Not as laughable as "metric is more convenient for human scale things". "Human scale things" includes fractions of an inch and fractions of a mile, which are horrible in customary units, and includes both the foot and yard which are used confusingly interchangeably. Metric is far superior for human scale measurements.

And that's only length. It gets worse outside of length. Like WTF is an ounce?

[roryirvine]

And using different ounces for metals, fluids, drugs, and, er, everything else - how does that not send people screaming into the arms of the metric system?!

And then there's the hundredweight, where "hundred" actually means "eight"...