Dog Abuse: Did He Do The Right Thing?

Video: Dog Is Dead - Do The Right Thing (Official Video)

My son went for a walk today and found someone his own age who had just moved in to the neighborhood. Thinking he had found a new friend, the two started hanging out the the afternoon.
My son was delighted when my new friend said, “Let’s talk my dog for a walk.” The two of them took his little Yorkie mix for a walk.
During the walk, the Yorkie ran ahead and the boy said, “Watch this!” He jerked the leash so hard the poor baby flew right by him and landed in back of him. Then he jerked the leash forward and the dog went sailing ahead of him and was crying.
My son responded by yelling stop abusing your dog and punched his “former friend” and walked away.