If you go down in the woods today...

There are some things your parents teach you as a kid. Don't talk to strangers. Don't step into traffic. Don't climb into the bear pen at the zoo. You know, normal, everyday life lessons. Apart from the last one. Apparently, at least one person wasn't given the all important "Don't antagonise grizzly bears" talk as a child, and thought he should climb into the pen. The results were, shall we say, predictable.