21 of the most absurd photos of London mayor Boris Johnson

To some he's funny, colorful, and willing to poke fun at himself; to others he's bumbling and sometimes even inappropriate.

"Humor is a utensil that you can use to sugar the pill and to get important points across," Johnson, who's known by many as just Boris or even BoJo, told the Wall Street Journal in 2008. "It has allowed me to get on innumerable platforms."

We've rounded up some of his most memorable goof-ups in photos here - from the time he got stuck on a zip wire to his collision with a 10-year-old schoolboy.