Can't resist posting this one.
Borg

Subject: (ATD) Attention to Detail

  Students at the UH Med School were receiving their first anatomy class
with a real dead human body. They are all gathered around the surgery table
with the body covered with a white sheet. Then the professor started the
class by telling them: "In medicine, it is necessary to have 2 important
qualities as a doctor: The first is that it isnecessary that you not be
disgusted." The  Professor uncovered the sheet, sunk his finger in the ass
of the dead body, withdrew it and sucked it.  "Go ahead and do the same
thing," he told his students. The students freaked out, hesitated and
subsequently taking  turns, sunk their finger in the ass of the dead body
and sucked it after withdrawing it. When everyone finished, the Professor
looked at them and told them:
"The second important quality is observation. I  sunk
the middle finger and sucked the index. Pay attention people!!! "
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