There was outrage when T-shirts went on sale printed with offensive variations of the Keep Calm and Carry On slogan. But has the endless parodying of this wartime slogan now become tedious?

‘Dig for Victory’, ‘Careless Talk Costs Lives’, ‘Make Do and Mend’ have become ... And it’s been spoofed and parodied many times over (‘Keep Calm and Have a Cup­cake’), often with the crown device ...