Mean Professor

The medical student was shocked when hereceived a failing grade in radiology.Approaching the professor, he demandedto know the reason for the grade. "You know the self X-ray you took?"asked the professor. "I do." said the student. "A fine picture," the professor said,"of your lungs, stomach, and liver." "If it's a fine picture, then why didyou give me an F?" asked the student "I had no choice," said the professor."You didn't put your heart in it."