Once the drug is administered via syringe Captain Larkin again attempts to assert his authority over Dr. Walker again by demanding he surrender the used syringe, implying it may be needed as evidence. Dr. Walker stands his ground and refuses to surrender the syringe in question and states that he is only answerable to "my peers and my profession" implying his Hippocratic Oath supersedes the Captain and Myerson's legal authority. Larkin sharply replies that while Dr. Walker may be responsible for just this one life but as Captain of the airplane he is responsible for over 250 passenger's lives. Dr. Walker again immediately cuts him short when he pointedly draws the line by stating to the Captain "we each have our jobs to do, you do yours and I'll do mine".