By Emma Mackenzie Like father, like son, so the saying goes, but it turns out that despite the Prince of Wales and his father King Charles sharing the common destiny of the crown and a passion for environmentalism – they differ when it comes to their eating habits, and a strict rule that the King has been known to follow for many years, isn’t shared by Queen Camilla either. This is a rule that King Charles is famous for keeping to, so much so that it was even included in a list of fun facts that was provided by Clarence House on his 70th birthday back in 2018, widely reported to be a creature …