True Story: I visited No. 11 Downing Street as a school boy in 1998 when Gordon Brown, our local MP, was chancellor. He took us next door to no. 12 where Nick Brown was chief whip, he started pointing out things in his office and as he was doing so a side door opened and a man stepped in. He pointed at the man and said "And that's a civil servant". The man reversed course, closed the door, opened it again and stuck his head around and said "Yes, minister". My classmates didn't get the joke, I did but was too stunned to laugh as Nick Brown and Gordon Brown had fallen about laughing and I was just thinking "aren't you meant to be running the country and not making TV jokes?" To be fair it was pretty funny :)