First-year students at Kansas State Vet School were receiving their first
anatomy class, with a real dead cow. They all gathered around the surgery
table with the body covered with a white sheet. The professor started the
class by telling them, 'In Vet Medicine it is necessary to have two
important qualities as a doctor: the first is that you not be disgusted by
anything involving the animal body.' As an example, the Professor pulled
back the sheet, stuck his finger in the butt of the dead cow, withdrew it
and stuck it in his mouth. 'Go ahead and do the same thing,' he told his
students.
The students freaked out, hesitating for several minutes. But, eventually,
took turns sticking a finger in the anal opening of the dead cow and sucking
on it. When everyone finished, the Professor looked at them and told them,
'The second most important quality is observation. I stuck my middle
finger but sucked on my index finger. Now learn to pay attention!'