because you have a fear for you child, and his or her safety. personally if a dog was like that to me or any of my family members i would go and talk to the owners. and believe me i've had this experince with my own dog to. our neighbors complaned that our dog was vicious or what not. but when then actually got to know the dog it was quite friendly to other people. But god forbid another dog or cat comes around then all hell just breaks loose![]()