Jack, the start of that was in '71 or '72. The Yanks were going metric, so Canada changed to metric. We had no idea what it meant. My mother to the day she died thought that Calgary and Edmonton got further apart. Of course, she also thought the sun rose where East is and North was where she was facing. Then, when Canada had all gone metric nutzo, the USA decided they wouldn't. Meanwhile, Canada was up to its arse in metric signs. Lotsa metric signs. So, with no further aplomb, we posted the signs and expected Canadians to find out what they meant. We did. The people who survived have had children who know the difference between KPH and MPH. The difference is .6, sort of.