This perfectly-able, but skilled dog runs down the stairs - using only its two front legs. Four-year-old pointer pup Maddi has four fully functioning limbs, but prefers to conduct a balancing act on two, or sometimes three, instead. Kelly Krutsch, 37, has had Maddie since she was a puppy, and quickly discovered her unusual talent. Kelly, from Chicago, Illinois, who is currently unemployed, said: "Nothing is wrong with her. She just doesn't like to use all four legs. I guess she finds the fourth leg just gets in the way.