They were having a special morning in pre-school. The children were to go dressed in pyjamas, they'd have breakfast together and then the tooth lady would come and tell them all about tooth care. Parents and carers, similarly dressed, were invited to join them.
Daughter had a lot of work to do - which is why we were down in Devon - so she asked if I'd go with GrandDaughter. 'Only she might feel left out if all the other children have grown-ups with them.'
Guess what? Yes, you're right: I was the only adult visitor in pyjamas.
There was a certain inevitability about that I think.