Dirty mind

Mr. Hamilton, the biology instructor at a posh suburban girl's junior college,
said during class, "Miss Smyth, 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 Smyth gasped, then said freezing, "Mr. Hamilton, I don't 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. Hamilton called on Miss Johnston and asked the same question.
Miss Johnston, with composure, replied, "The pupil of the eye, in dim light�.
"Correct," said Mr. Hamilton.


� And now, Miss Smyth, 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."