Meanwhile, back at the 'subject: I remember shopkeepers being up in arms about the change to metric, not because it would confuse the customers, but because they'd have to buy new sets of scales. Force them to change them back, and they'll be up in arms again for the same reason --- the old scales have long since been melted down, or can now only be got back from the antiques trade at interesting prices.

.... Besides, nobody seems to have noticed that the yard is no longer a freestanding (erm) standard of length: the inch was redefined as 25.4 mm.