I know that, but Americans don't and ask for "Imperial". No one has ever asked me for "US customary". Either way, I am using those units to be facetious more th

I know that, but Americans don't and ask for "Imperial". No one has ever asked me for "US customary". Either way, I am using those units to be facetious more than compliant ;-) In practice the volume units are a much bigger problem. I have not hit anyone with the "cubic hand" yet...