Sunny the Rescue Pup: Training Out the Troubles

Sunny at our wedding. It's been almost three months since we walked out of the Yakima Humane Society with a big-eared, severely-underweight border collie, Australian shepherd, blue heeler (plus who know what else?) mix. They had picked him up as a stray, so we knew nothing of his backstory. All we knew was that he loved being pet, loved being outside, and loved giving us his you-know-you're-taking-me-home look. We were smitten. The first time we ever saw him. Our adoption day photo. Then, he got home. Surprise 1: We thought our fence was high enough, but as soon as a loud truck went by, Sunny was gone. He had hurdled the fence and was sprinting down the street after it. We had a car-chaser who was deathly afraid of cars. His fear of cars extends to our own car. Surprise 2: He managed to escape from the yard (again) one morning a few days later and immediately attacked the neighbor's cat. Fortunately, the cat was fine, but we learned that his prey