Parents may view certain interactions between their children and their dogs as cute and assume that because their dog is tolerating the behavior now, they always will. Then, suddenly the unexpected happens and a bite has occurred. Many parents will think "It came out of nowhere." or "How could my dog do that? He's always been so loveable" When, in fact there have probably been small warning signals the entire time that we humans don't notice. Interactions such as the child sitting on the dog, grabbing the dog's ears and tail, poking and sticking their face in the dog's can make the dog feel uncomfortable and can cause defensive reactions.