Olympian Picabo Street kisses Ruby, a Pit Bull after Ruby competed in the Purina Pro Plan Incredible Dog Challenge at City Park in Denver, Saturday, June 30, 2012. (Jack Dempsey /AP Images for Purina ... more 
Olympian Picabo Street kisses Ruby, a Pit Bull after Ruby competed in the Purina Pro Plan Incredible Dog Challenge at City Park in Denver, Saturday, June 30, 2012. (Jack Dempsey /AP Images for Purina Pro Plan) less 
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Associated Press
Sat, Jun 30, 2012 7:40 PM EDT