+100
If one of my dogs doesn't like somebody, I know they are a bad person. Converse is true too. If they do like a person I am pretty sure that they are a good person.
I had a dog that made being a dad ridiculously easy. Damned near a "cheat code".
This dog bonded to my son the moment we went in to meet him, and wouldn't let any of the other dogs near him. When my son was in school, he would frequently bring home kids he went to school with as "new friends". If the kids were of "questionable character" the dog would position himself so he was always between my son and the other kid; no growling, baring teeth or other other signs of aggression, just make sure that the other kid had to go thru HIM to get to my boy.
No shame in admitting that I bawled like a baby when he developed renal failure and we had to put him down. I still miss that dog.