Autopsy
An autopsy professor was giving
an introductory lecture to a class of students. Standing over a
corpse, he addressed the class. "There are two things you
need to make a career in medical forensics. First, you must have
no fear." Having said that, he shoved his finger up the
corpse's anus and licked it. "Now you must do the
same," he told the class. After a couple of minutes of
uneasy silence, the class did as instructed. "Second,"
the professor continued, "you must have an acute sense of
observation. For instance, how many of you noticed that I put my
middle finger up this man's anus, but licked my index
finger?"