Man says he fends off lion with chainsaw in Wyo.
A man says he used his chainsaw to fight off a starving mountain lion that attacked him while he was camping in the Shoshone National Forest. Ex-Marine Dustin Britton of Windsor, Colo., says he raised the chainsaw he had been using to cut brush and inflicted a six- to eight-inch gash on the 100-pound lion's shoulder.





