Conservative leader David Cameron was desperate not to slip up during a live webcast at the King’s Fund. He was answering questions submitted by the public via email and Twitter - despite having famously called users of the website a rude word during a radio interview last year.

Expletive tweeted

Expletive tweeted

Expletive tweeted

Mr Cameron told the audience: “I made a mistake once on tweeting and I won’t do that again.” But he nearly did just that when he rounded up by saying “let’s end with a tweet”, hastily adding: “I’m glad I got that right!”