The Christmas fair in my son’s school was, like all such things, unexpected. This is no one’s fault, but my own. I have a tendency to be – nay, an addiction to being – the last person to know about anything going on in his school. It is entirely my fault, you understand. There are leaflets and emails and reminders, it’s just that they never seem to sink in and leave me filling out zoo paperwork at 6am on the morning of ‘Adopt a Giraffe’ Day, or scrambling to cobble together a costume on Sunday night, before ‘Dress Like One