My bf's yorkie can't be left alone. If anyone leaves the front door he will sit there and cry. If his 3 favorite mommy's leave it's even worse. Now he cries and barks when we come back. It's so annoying that he cries from anxiety. Besides that problem he is the best dog. He is so so so calm as a 6 month baby. He walks really good. As a matter fact he doesn't really like to walk too much. He is so lay back and kick back.