a dog that'll bring a bone will carry a bone

Someone who gossips to you will also gossip about you. I know you love to gossip with Zelda, but watch what you say around her—a dog that'll bring a bone will carry a bone. They talk about people behind their backs all the time, and that's why I don't trust any of them. A dog that'll bring a bone will carry a bone, right? Gossip, rumors, that stuff just isn't fun for me because I know a dog that'll bring a bone will carry a bone.