Haha.. I also have a 4.5 month old yorkie going through the same stage. He's in puppy classes and during one class the instructor said after spending 15 minutes working with him, "I'm going to be honest - I don't know what to tell you. Nothing motivates this dog to behave!!" Sometimes he's an angel and sometimes he's downright scary. I believe it's just a phase he's going through. He's teething, he's hot b/c it's summer, and has a TON of energy from being a puppy. I'm sure both of our dogs will grow into well behaved adult yorkies!!
