A friend whose hair, I think it’s fair to say, is receding faster than mine, has sent me a link for an Australian TV commercial that promises the wonders of “German engineering, for your hair”. A car could be a shoebox on wheels but with German engineering will purr like a pussy cat -- years of exposure to television advertising has taught us that. But German hair?

Something called “caffeine shampoo” that comes from an aerodynamic red-cap bottle purports to carry the secret of an eternal head-covering for men. The original version, going by YouTube, is English, and shows a suddenly caffeine-energised red hair pushing along a white background, like a sunburnt worm spiralling through a snowstorm. Well, if the Brits are dopey enough to vote for Brexit (delisting 60% of exports and blaming foreigners for it), they’re silly enough to still be making ads with guys in white lab coats talking animatedly about a computer graphic.