We were at the beach once when we only had JPop. He barked like a crazy dog at this woman walking by and I was embarrased and telling him to be quiet, etc. This woman said, honey, he's a terrier, he's gonna bark. That's the way God made him. I do believe she was right! I've go 3 more now and they pretty well all do the same thing. Just chalk it up to another one of those Yorkie things.