A teacher asked her class "which human organ expands to almost 10 times its normal size when stimulated?"
"I can't believe you are asking us this question!" one girl yells, "I plan to tell my parents that you are asking us inappropriate questions!"
The teacher pauses and another boy puts his hand up "the retina of the human eye?"
"Yes!" the teacher replies. "Very good Billy!" she then turns to the girl "I hate to tell you this," she says "but number 1, you did not do your homework, number 2, you have a very sick mind, and I fear you will be sadly disappointed someday