It was a damning assessment of the negotiating talents of ex-London Mayor Boris Johnson: "Boris negotiated in Europe. I seem to remember last time he did a deal with the Germans, he came back with three nearly new water cannon."
Who said it? Then home secretary and now prime minister Theresa May, launching her bid to become leader. At the time it was an enjoyably risque reference to the day she humiliated Johnson by refusing to allow him to give water cannon he had already bought to London’s police.