In this video, "Shorty" is giving the Golden Retriever a "correction" for getting too close to his bone. You'll notice that the correction was quick and to-the-point. It's not personal. It's just enough to get his point across. Look at the expression on the Golden Retriever -- he's not sulking. His feelings aren't hurt. It's just a form of communication. In the future, Shorty will be able to accomplish the same, with nothing more than a firm "look" or a glance.