Obstetric practice includes the Apgar test, a postnatal assessment, and typical handling procedures. The 'customary slap on the ass' is a colloquial reference to stimulating the infant's breathing reflex. The response described proposes retaliation proportional to perceived assault—a punch delivered to the physician's genitalia. Infants possess no capability for such coordination or force. The claim proposes that at the moment of birth, a capability normally requiring years of motor development and training is immediately present and deployed. The infant doesn't surprise the doctor through behavior variation. The infant arrives with violent intention.