Sixth grade science teacher, Mrs Parks, asked her class, " which human body part increases 10 times its size when stimulated?. No one answered until Mary stood up and said, "You should not be asking sixth-graders a question like that! I'm going to tell my parents, and they will tell the Principal, who will fire you!".
Mrs Parks ignored her and asked the question again. Mary's mouth fell open ,"Boy ,she is going to get into big trouble".
The teacher ignored her again and continued, "anybody? ". Finally, Billy stood up, looked round nervously ,and said,
The body part that increases10 times it's size when stimulated is the pupil of the eye,"
Mrs Parks said "Very good Billy." She then turned to Mary and said, "As for you young lady, I have three things to say:
One, you have a very dirty mind, Two, you didn't read your homework, and three, one day you are going to be very, very disappointed.