Mr. Smith, the biology instructor at a Highschool, said during class, “Miss Jones, would you please name the organ of the human body, which under the appropriate conditions, expands to six times its normal size, and define the conditions.” Miss Jones gasped, then said, “Mr. Smith, I do not think that is a proper question to ask me. I assure you my parents will hear of this.” With that she sat down red-faced. Unperturbed, Mr. Smith called on Miss Brown and asked the same question. Miss Brown, replied, “The pupil of the eye, in dim light.” “Correct,” said Mr. Smith. “And now, Miss Jones, I have three things to say to you. One, you have not studied your lesson. Two, you have a dirty mind. And three, you will some day be faced with a dreadful disappointment."