If you are a fan of British comedy, you will no doubt recall that memorable episode of Fawlty Towers when Basil, the crazed Torquay hotel-keeper played by John Cleese, welcomes some German guests. The more Basil tries not to mention the war, the more obsessed with it he becomes, until after a bump on the head, he begins goose-stepping around the foyer in an incredible parody of the fuehrer. The German guests are distressed and incredulous. “However did they win the war?” asks one. It’s a good question. As we have watched, fascinated, the goings-on in the UK over the…