We are queuing in the bag drop line at Gatwick and I am trying to explain the security arrangements to the girls. “So” I say “they’ll be looking through your pockets. Any guns or knives? Ha ha!”

Lil S looks up and says “Me got dis!!!” In her hand is a double-bladed pencil sharpener. It is about the only object she owns that might set off a security alert. HOW did she know?