Actress Katherine Heigl has bought GREY'S ANATOMY co-star T.R. KNIGHT a new dog in an effort to stop him whining about owning one. Knight was amazed when his kind-hearted pal arrived unannounced at his house with his new pet. He says, "I had been talking about (getting a dog) for a while. I guess there's a point - too much talk and not enough action. "So she made the decision. It was great, she showed up at my house with it."