In contrast to dogs used by states for violence:
most dogs are wonderfully loyal only to their owner. I love dogs. I don't love dogs that are used for violence against people. Bomb dogs are ok. Attack dogs, no.
Also, although I recognize that various strains (of humans, dogs, etc) have different tendancies towards aggression, etc, I try to treat each individual neutrally a priori.
So I'm ok with some Hades Kerberos dog, if he's a good dog. But without meeting him, my Bayesians tell me to watch him.
That's called rationality. It may not be politically correct. Too bad.