On a recent show, Dave opined that shaving one's armpit hair might cut down on deodorant failure, and a listener called into vindicate him, much to Mark Moubarek's shame. Another listener, PharmD and author Tony wants to know how a medical student gets to the point where they can be confident enough to say to a patient, "There will be no problems." Mark, Amy Young, John Pienta, and newcomer Julie Gudenkauf weigh in on the acquisition of confidence and the art of reassurance.