Even the best-natured dog may bite to protect himself in these circumstances, especially if he feels cornered. Once a child is given permission to approach a dog, she should present her closed fist for the dog to sniff. This protects the fingers in case the dog is frightened and tries to nip. Children should never hug a dog that is not their own, and should only hug their own dog very gently if the dog can tolerate the hug. Children should be taught to never hit dogs with their hands or an object, to lower their voices when playing with the dog, to leave the dog alone when he's sleeping, eating, or ill, and to never tease a dog in any fashion.
Many dog bites occur because the child teases the pet beyond endurance.
Dog owners share the responsibility for bite prevention as well. They should socialize their puppies to small children at an early age. Socialization can be as simple as walking the dog near a playground where children are making noise, running about, playing ball or Frisbee or soccer or walking through the neighborhood while the kids wait for the school bus. Constant exposure of this type will accustom the dog to the presence and antics of children. 1.The dog should never be left alone with a child less than five years of age.