The Duke and Duchess of Cambridge With Their Son Prince George Alexander Louis of Cambridge In BuckleburyLupo, bottom right, in happier times. Image courtesy of Getty.

One minute you’re the royal hound, your life an endless montage of walks on the moors with your royal owners, flowing, Cocker Spaniel locks bouncing in the wind, flashing your winning grin at bowing-and-scraping passers-by.