File this one under “new uses for portable restrooms.’’ How do you think the Kansas City Chiefs are using a red PolyPortables Integra restroom to make their receiving corps more sure-handed? No, the coaches aren’t dotting the practice field with restrooms and having players try to avoid them in a life-size version of bumper pool. Yahoo Sports blogger Doug Farrar on Sunday picked up on a story from the Chiefs training camp earlier this year in which running backs coach Maurice Carthon demonstrated how the team throws to players sitting inside the restroom who don’t know exactly when the ball
