David and Samantha Cameron left their eight-year-old daughter alone in a pub as they travelled home from Sunday lunch with friends, it emerged last night.

The Prime Minister, his wife and three children had enjoyed an afternoon meal with two other families at The Plough in Cadsden, Bucks, when they took their eye off their eldest daughter Nancy.

When the family gathered their things and left Mr Cameron shared a car with his bodyguards while Samantha followed behind with son Elwen, six, and daughter Florence, 22 months.

The Prime Minister thought Nancy was in the car with his wife, while Samantha thought she had jumped in with her father. It was only when both cars pulled up to Chequers, two miles away, that they realised she was not there.

A Downing Street source said the “distraught” parents rushed inside and telephoned the pub, where staff reassured them that their daughter had been found alone in the lavatory and was being looked after.

I think it’s fair to say that most parents mislay their offspring from time to time, but what does this say about his close protection team? Didn’t they realise one of their charges was missing when they left the pub? Oh Dear!