I have three Yorkies, all different sizes and ages. The youngest is known as the dog from hell. She was so destructive that we wanted to give her back after just two weeks. She is very Alpha and the other two (females ) aren't. The oldest one puts her in her place though. When Lucy has had enough she grabs Suzie by her bottom lip and pulls her around the room. Suzie steers clear of her now, sore lip I guess. Suzie is my avatar.