Surrey used to be where you came when you were rich but too polite to say so. It was quiet and unassuming, with walled gardens, tile-hung houses and VW Golfs parked on gravel driveways. No one troubled you during your strolls across the Downs except for the occasional dog walker, which meant ‘dog owner’, because people would walk their own dogs instead of outsourcing the tedium to the specialists at doggy day care.