I agree that Yorkies can be challenging in their way- but to be honest, I've been lucky never to have had a Yorkie that gave me a REALLY hard time. The one's I've had have definitely had a lot of personality, loved to play and be with me constantly, and all gave me a run for my money, but I wouldn't have traded a moment of any of it. Luckily most of them eventually learned that momma is the boss and when momma's happy, everyone's happy