From free-range cowboy to down-home daddy When pilot Lisa Phillips was named coguardian of her niece she did everything by the book: clipped her wings, took cooking classes and settled down to be a stand-in mom. But she hadn't planned on playing house with her "frenemy"--freewheeling rodeo rider and good-time cowboy Brett Sullivan. Sully stared down one-ton bulls on a daily basis, but a three-year-old girl struck terror into his heart. And so did...