We have this new neighbor, he's been there a few months now. He is s newly divorced man, has a teenage daughter living there with him. He's very friendly; too friendly, it's a little disturbing, and actually kind of annoying. So he's become good freinds with my dad, who, unfortunately for me, lives right behind and over one from me, so my yard is his throughway to talk to this freindly neighbor. My dad also takes it upon himself to invite him through my yard to his yard (dad's yard), since we already have the opening in the fence between our yards, etc. So where this is leading... My faithful beast LOVES people, but she seems to hate our neighbor. She growls at him, barks at him, if she's outside and hears his voice in his yard, she goes a little nutty. She's super-people-friendly if we indicate a person is ok (she'll bark and growl at people she doesn't know when they're on our "turf" until she sees us freindly to the person). But after months of us being cordial and this guy being in our yard on occasion, she still treats him like a stranger and is defensive with him. Further issues: I have a 6 year old girl and a 4 year old boy. This neighbor is extremely freindly to my daughter, gives her flowers and little presents, talks to her all the time, invites her over, etc. He apparently does the same thing to the little girl who lives on the other side of him, whose family we barely know, but we chat with occasionally. We don't ever let her out of our sight with him, but I'm becoming a little troubled by this behavior. He seems to bond better with her than he would with us, and that makes me wary that they might develope something like "secrets" or other things no parent likes to think of. Emmy is very well learned in being aware of bad people seeming like good people, and bad touches, and secrets and other things I wish we'd never have to teach her, but I'm still worried. An adult can fool a child very easily. So anyway, that's not the issue I'm wondering right now. The issue I'm thinking about is whether my dog can detect malice or artificial personalities, or whether she detects my standoffish attitude toward the neighbor (I only recently became standoffish, as I started becoming uncomfortable with the way things were). What do you guys think? Is my dog being the guardian and warning us she thinks something's not right?