I walked my current dog up the street so I could introduce him to my yorkie off his territory. Well when my yorkie meet us my current dog started barking at him and my yorkie did the same . But the thing about it is that my yorkie never stopped. He was ready to fight. It was kind funny cause my current dog is like 10 times bigger than him. After awhile he wasn't even paying attention to him. He just wanted to keep on with the walk. Not my Yorkie. He wanted to attack!!! Im just going to keep them separate