There are three large dogs in our neighborhood and I see them every day. All three interact with their owners and families in loving ways.
But two of the dogs act completely different when their owners aren’t around. One is defensive and frightened of anyone who comes near the fence, the other is flat-out hostile. I’m really afraid that a kid is going to lose their face one of these days.
I spoke with a mail-woman who told me that this was common. She was really frustrated because owners never see their dogs act like that when they’re around. “Oh, he’s friendly and loving! He’s a great dog!”
Then she comes by to drop off a package when they’re not home and she gets teeth, growls and hackles up.
I tell my daughter, keep ‘em well-fenced and well-loved, but don’t assume that the dog is behaving himself when they’re alone.
Some overly protective dogs are exactly the reverse.