One day a teacher had a taste test with her students. 
She picked a little boy to do the first test. She 
blindfolded him, put a Hershey kiss in is mouth and
asked, Do you know what it is?" 

"No, I don't," said the little boy.

"Okay, I'll give you a clue. It's the thing your daddy
wants from your Mommy before he goes to work."

That's when a little girl at the back of the room yelled,
"Spit it out! It's a piece of ass!!"