Difficult essay exam One day a student was taking a very difficult essay exam. At the end of the test, the prof asked all the students to put their pencils down and immediately hand in their tests. The young man kept writing furioulsy, although he was warned that if he did not stop immediately he would be disqualified. He ignored the warning, finished the test 10 minutes later, and went to hand the test to his instructor. The instructor told him he would not take the test. The student asked, ""D…