London Mayor Boris Johnson chased and stopped a group of litter-throwers who threw litter from their car window.

Boris Johnson was riding home on his bike when he was hit on the head by some rubbish thrown from a passing car.

Boris, who is enforcing sveral policies to stop littering and clean up London before the 2012 Olympic Games, then chased the car and told off the occupants. He said in his newspaper column in The Telegraph:

"There were three kids inside, and I could see the culprit goggling up at me with appalled recognition. They lurched off again in the hope of escape, but of course I had them at the next lights.

"Open up now," I yelled, "because you aren't going to get away with it, I am the mayor!

"By this time they were starting to look a bit unnerved, and the window came down.

"I know you is the mayor," said the driver, "and it was a accident."

"Pull over!" I commanded.

"Right!" I said, when we were all assembled. "Why did you throw something at my head?"

"Please, Mr Boris sir, this wasn't meant to happen."

"We know you is the mayor, man."

"We gotta lot of respect for the things you are doing."

"Look, just don't throw things – er – at people's heads, OK."

"It was a accident, I swear. It was only a piece of litter."

"At that point, I am afraid the red mist came down again. Only a piece of litter! Here we are in the depths of a recession, and councils in London are forced to spend about £100 million a year on cleaning up the casual detritus of people like him.

"Well, don't throw pieces of litter at people's heads!" I said. At which they did their best to calm me down.

"We won't do it again," they promised. "Can we have a photo, Mr Boris?"

"I have no idea whether I changed their attitude to litter, but at least I tried. I hope you will, too."