The 6th grade Science teacher, Mrs. Parks asks her class, "Which human body part increases to ten times its size when stimulated?"
No one answered until little Debby stood up, angry, and said, "You should not be asking sixth graders a question like that! I'm going to tell my parents and they will go and tell the principal, who will then fire you."
With a sneer on her face, she sat back down. Mrs. Parks ignored her and asked the question again, "Which body part increases to ten times its size when stimulated?"
Little Debby's mouth fell open, then she said to those around her, "Boy, is she going to get in big trouble!". The teacher continued to ignore her and said to the class, "Anybody?"
Finally, Billy stood up, looked around nervously, and said "The body part that increases ten times its size when stimulated is the pupil of the eye."
Mrs. Parks said, "Very good Billy", then turned to Debby and continued, "As for you, young lady, I have three things to say:
"One: You have a dirty mind,
Two: You didn't read your homework and
Three: One day you're going to be very, very disappointed."