“Cleanliness is next to godliness, whatever that means. But the trouble with that sort of approach to life is that it never ends. Yes, you can take time to pick the weeds from the pavement outside and scrub your skirting board and make sure there’s no dust collecting in any evil corners but you had to keep on doing it. If I had to do it all this week and then again next week and then the week after that, why not just leave it till next month? Or preferably next year?”