When I was ten – or possibly even younger, but definitely at or before the age of ten – I was in the playground with some other girls – not friends, not quite, but not enemies. One of them told me that they had a club, and I wasn’t in it. Their club was an exercise club: they were trying to lose weight, because they all weighed over 5 stone. I was not allowed to join because I was skinny, and therefore didn’t weigh enough.