Imogen Achara has been extremely firm with me about it and so has Hugo and so, once, in a corridor, has Dovie Mwangi, who has no reason to be kind to me.

Nobody looks at the baby.

Everybody looks at the adult.

It is what people do and it is not a failing and there was nothing in those thirty seconds that would have changed one thing about that femur.

I know all of that.

And a friend of mine dropped her son off at my house in the June, for two hours, an entirely ordinary Tuesday, a perfectly well three-year-old with a scooter helmet under his arm.

And she stood in my doorway and started telling me something about her afternoon.