No matter how well socialized or well trained a dog put in the wrong situation can bite, they do not choose to bite, it is simply a reaction to keep them selves safe.
Teaching your child to interact safely with a dog and being able to interpret a dogs body language is the best training you can do and to prevent incidences.
Never approach a new unfamiliar dog on or off leash:
- Ask the child to call the dogs name, if the dog comes forward, let him sniff the child and ask them to wait a few moments
- Then if the dogs body and ears appear relaxed and lightly stroke him under the chin or on he side of his face (never reach over the dog) while assessing the dogs reaction. Dogs don't tend to like being patted on the head as a first greeting, but they learn to tolerate us humans.
- If the dog does not approach or moves away, he does not feel comfortable, don’t push the dog, give him more time to approach freely, perhaps ask the child to turn side ways and crouch down and look away from the dog, ignoring the dog can make him feel more comfortable. If the dog still refuses to approach, respect his wishes.