David Cameron's understanding of the word "no" has always been a bit suspect [1]. He took Yes, Minister too literally. [1] https://en.wikipedia.org/wiki/Piggat

David Cameron's understanding of the word "no" has always been a bit suspect [1]. He took Yes, Minister too literally. [1] https://en.wikipedia.org/wiki/Piggate https://en.wikipedia.org/wiki/Piggate