Students are not just learning medicine during the third year of medical school; they are learning how to be doctors. Despite the carefully crafted official medical curriculum, it is the “hidden curriculum” that drives the take-home messages. The students astutely note how their superiors comport themselves, how they interact with patients, how they treat other staff members. The students are keen observers of how their supervisors dress—and how they may dress down those around them. They figure out which groups of patients can be the object of sarcasm or humor, and which cannot.