I have a sweet and very energetic 5-year-old Australian cattle dog who needs a good home. He's very smart, easily trainable, low-key during the day, but needs a good amount of exercise. (I'm in an extremely intense graduate program, and unfortunately I just can't keep up the 2-hour a day walks I was taking him on before entering the program. It breaks my heart to part with him, but I think he'd be happier elsewhere.)