I remember bidding in a Midlands auction house for a set of old fishing flies. The price rocketed and they were eventually sold to a friend. Their value was that they had once belonged to Neville Chamberlain, the prime minister of the brolly and the ill-fated Munich Agreement.

Premiership comes with many trappings, but huge stress. Few give the impression of enjoying their time at the top, or have much time to wind down, but Chamberlain apparently relaxed by fishing for trout. A true…