Watching an advert (the one where Daddy wants a cheeseburger for Father Christmas) in the cinema before today's film I thought about the time my stepson's wife told us not to use the term Santa Claus when talking to her then very young daughter. I never knew why and don't really care but it brought home to me that, whereas, once I could have shared this memory with my wife, today she would struggle to know what I was talking about. Small intimacies and shared experiences, just one more thing that we have lost ...