'And this is my friend Caroline, and Caroline is painting such a lovely red picture, aren't you, Caroline? I wonder what it is? Perhaps it's a lovely sunset, is it? Or a big red orange? It's a picture of Mummy! For a moment I thought it was a big red orange, but now you tell me, I can see it is a picture of Mummy. Aren't you going to give her any nose? No nose. It's so interesting the way they see things ...'