I've heard so many people say, If my dog doesn't like you, then I don't like you either. If you're not a pet parent, this might sound crazy, but it turns out, there's science to back this up!
If your dog doesn't like someone, now there's a STUDY that shows your dog really is onto something! Dogs are able to pick up on complex behaviors that indicate how trustworthy is. They also see how other humans treat their owners, and act accordingly. Check it out!
Moral of the story: Listen to your dog!