I once went into a "traditional" sweet shop and asked for a quarter (pound) of sherbet lemons and the shopkeeper said "Huh, can't sell quarters anymore - it's 100 grammes now. Another thing Europe can't keep its hands off".
So I said "yeah, it's terrible - not as bad as this 'metric time' thing though". And he said "What? What's that?"
So I said "you know, 100 seconds in a minute, 50 minutes in an hour, 20 hours in a day"...