a lot of people say “No bark” to their dogs to ask them to stop barking. “No bark” certainly sounds simple, because it is just two short words. But look at it from your dog’s perspective. First of all, have you taught your dog what bark means? After all, it’s just a noise you’re making, and the noise itself has no meaning until you’ve taught your dog what it is. The only intrinsic meaning it might have for your dog is that you’re joining in the chorus, and since barking is contagious, you’re more likely to encourage your dog than quiet him.