Politics is more like buying a guitar than buying a cake or a pair oid trousers. Get a cake off the shelf, you go home and eat it. But a pair of trousers off a hanger, you go home and put them on and that's it. But buy a guitar and you've got to get it in tune, and keep it in tune, and play it in, and even learn how to play it. And you might even have to do stuff like adjust the action till it sounds and feels right.

We joke about the idea of saying "but it was in tune when I bought it" - but that's no sillier than saying of a politician "he said all the right things while he was running for election".