An obstetrician, dr. jones, was enjoying a 25th anniversary celebration and had a few drinks. he arrived at the hospital and was seen staggering toward the delivery room. ms. marshall suggested that the on-call obstetrician be called to perform the delivery. dr. jones insisted that he was quite capable of delivering the baby. during surgery, the physician accidentally nicked the patient’s right thigh with a scalpel. liability for the injury extends to