Last week I was sitting in my office when I heard a dog barking. Usually, the dogs here are very good, they don't make much noise, so I just had to look out.
Two of my neighbors were out walking their dogs, one is, I guess mid-sized, I'd guess a Lab and the other is a small dog. I don't know too much about dogs, but I've heard that the smaller the dog the more he barks. What really got my attention though was the larger one. As the small dog kept barking, the other went to stand behind his owner. I guess he was looking for protection from his owner, not the other way around.