First-year students at Texas A&M's 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. For 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, hesitated 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 in my middle finger
and sucked on my index finger. Now learn to pay attention."