Don’t let children play games with dogs

Don’t let children play competitive games with puppies unless an adult is present. Make sure the dog is small enough and fully understands the rules so that it won’t pose a threat to children during play.

You can spray water on the dog to stop it

In some special circumstances, you can use a watering can, just in case. If the puppy wants to bite someone, say "no" in a stern tone, and at the same time spray water on the dog's face with a watering can to interrupt the biting behavior. Note that the watering can's nozzle is set to spray liquid, not eject liquid.

You can put a muzzle on your dog

Take safety precautions when your dog bites. Put a muzzle on your dog. Your dog will learn to stop nipping or biting with the help of a muzzle, but this method is not recommended if you do not have a deep understanding of the training steps and goals. If a muzzle is not used properly, the dog may become more dangerous, especially to those who try to muzzle it.