don't listen to the negative knuckle-heads....We also have 2 shelties and they BARK and YAP at everything worse than my Piper, just ignore these people, they seem to fall into the same category as the people who just don't understand how special all our furry creatures are. Look at it this way, our dogs are better off not being owned by any of these negative people....it's true these dogs pick us. They are our owners