David Cameron interrupted reading a letter from a former Labour MP to tell a member of the House: 'Calm down dear'.
The prime minister had to break off twice more in his reply at PMQs and the Speaker also reprimanded MPs about the noise in the House of Commons.
But the public later wrote in to the BBC's Daily Politics to say they were not impressed with the PM's choice of language towards Shadow Chief Secretary to the Treasury Angela Eagle and the PM faced calls to apologise.
Video here: http://www.bbc.co.uk/news/uk-politics-13207256
I thought it was quite amusing. I wonder if it will be used to call him sexist...I dont think labour has much ammunition though seeing how amusing he found it:

Also,

Cameron - "Calm down dear"
Clegg - "What have I got into..."