Stop me if you've seen this already

http://news.google.com/news/more?pz=...J4piwmqcT55gyM

http://www.timesonline.co.uk/tol/new...cle6901972.ece

Boris Johnson, the Mayor of London, has chased off a group of girls attacking a woman, shouting at them that they were “oiks”.

Franny Armstrong, a film-maker and climate activist who admits that she voted for Mr Johnson’s opponent, Ken Livingstone, in the mayoral elections, was surrounded by the girls while walking home in North London.

“It was very frightening,” she said.

The girls, one armed with an iron bar, pushed her against a car.

“At that moment a man cycled past and I called for help,” Ms Armstrong said. The cyclist, who turned out to be the mayor, stopped.

“He said to the girls, ‘What do you think you are doing?’,” Ms Armstrong said. She added that he chased them down the street, calling them “oiks”.

He returned and insisted on walking her home.

“He was my knight on a shining bicycle,” she said.

Ms Armstrong directed the film Age of Stupid and is the founder of the 10:10 campaign, which aims to cut 10 per cent of carbon emissions in 2010 and has attracted support from leading firms and personalities.

She admitted that she did not agree with Mr Johnson’s politics, and had voted for Mr Livingstone, but added: “If you find yourself down a dark alleyway and in trouble I think Boris would be of more use than Ken.”