It is quite common during the first clinical year for med
students to suddenly "pass out" from standing bedside too
long. I remember one of these sessions where the patient was
an English tourist visiting Malaysia, and ended up sick in my
hospital. We were all gathered in the patient's room and the
clinician went on and on and on. The patient was clearly
waiting for something to happen. Finally the clinician asked for
a volunteer to do a basic physical on the young man. The next
thing we knew, one of the junior med students had fainted, and
landed face down onto the patient's crotch. He must be one
impressed tourist.