This photograph is in colour. But the afternoon was black and white. It even had that droning sound and jumpiness of an old scratchy film. I should have worn pearls and lit up a cigarette. But I don’t have pearls, and I stopped smoking years ago. So I put on my tatty old jumper, sat next to my daughter and built a house with green playdough. Not exactly 1920’s Weimar, but a lot more fun.