I have a four year old Shih Tzu named Duncan. Shih Tzus are great dogs. Sweet, quiet, easy to housebreak , and devoted. My soon to be 1 year old Yorkie is quite different.
Barks at everything and everyone, and is still pooping in the house. I love him, but...he's a challenge. Walk on my street at your own risk! He's on the job, defending our house 24/7.
Sharon