What’s most extraordinary about the handwritten notice on our basement door is not that it is there at all, but that it took me a few days to notice it. We have a full basement, where the children play, we grown ups watch Doctor Who, Poirot, and Jane Austen films, and where I sing and my husband writes icons. I go down that stairwell several times on an average day. But I was in the middle of writing, you see, and the children and I had a book reading project in progress. By the time I noticed the sign, another household object was standing in for planets. My concern, therefore, was to find out why one must not eat the Kipper biscuit planets, not…