James Head, bottom, of Oklahoma City, Okla., and Nick Ring,...

James Head, bottom, of Oklahoma City, Okla., and Nick Ring, of Calgary, Alta., fight in a middleweight mixed martial arts bout at UFC 131. (June 11, 2011) Credit: AP

If you wish to assault people in public, choose your witnesses wisely. UFC fighter Nick Ring (on top in photo above) walked up on a group of teenagers beating up a pair of teenagers and acted accordingly.

Here's the story about how Nick Ring came to the rescue in Canada.

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