She said: “A child who behaves perfectly in a new house is a child who has concluded that staying is conditional.

“Do not correct it and do not praise it.

You are going to have to be extremely boring at her, for about four months, until she works out that the room is hers whatever she does.”

The nights were the other thing.

She would not have the door closed.

She will still not have the door closed and she is eight and I do not expect that to change soon.

And there was a thing about medicine, which was the worst of it.