Recently we were invited to dinner with friends in their lovely old vicarage. It was a cold night but there was a cosiness about the place, echoed by the warmth of our French hostess as she welcomed us through its imposing Georgian portal. This was not to last. Luckily, we hadn’t even taken off our coats before her husband stormed in from the back door, upbraiding her for switching on the heating: ‘You simply don’t understand! Vicarages are supposed to be cold!’ He was not himself the vicar, who now lived elsewhere, but his father had been, and our friend had bought back his childhood home. He knew whereof he spoke.