The trainer came on Saturday. She said there's hope for Buddy, based on the facts that he's a really fast learner, and VERY treat-driven. We are to work diligently on "Look at me", sit, down, and STAY (stay is the one that needs the most work with all our dogs). We have our work cut out for us, and she said Ludwig and Buddy may never be friends, but may learn to tolerate each other's presence. She said Buddy wants to be top dog, feels threatened by Ludwig (our GP), and wants him gone (not going to happen) - that's why he keeps attacking Ludwig (and getting his butt kicked). She also said she didn't see any reason Buddy couldn't be re-homed if he's well-trained. He'd be an awesome cow dog. Once, when he found a hole in the fence at the school (I took him there for exercise on a weekend), he ran into the woods - out of sight - in a big cow pasture. All the cows saw him in the woods and went running in his direction! I thought, Oh great - he's either gonna get trampled or shot! Well, moments later, all the cows came running out of the woods in a tight ball formation, with Buddy about 20 feet behind them! He directed the whole herd in my direction - like he was bringing all the cows TO ME! I yelled at him to COME! and he stopped herding them - they all stopped running - and he came to me...Weird.