Shops that are good at flogging stuff still flourish under a hot sun, as they do in the depths of a cold snap. Contrast Thorntons’ moans with Hotel Chocolat’s latest results, where promoting its chilled drinks, fridge-cold “choc ices” and ice cream helped revenues jump 12% in the year to July, despite it too being a chocolatier. “We don’t,” said chief executive Angus Thirlwell, “just hide in the shade until the summer’s over.”