The kindergarten class had settled down to its coloring   
books.   

Willie came up to the teacher's desk and said, "Miss   
Francis, I ain't got no crayons."   

"Willie," Miss Francis said, "you mean, "I don't have any   
crayons.' You don't have any crayons. We don't have any   
crayons. They don't have any crayons. Do you see what I'm   
getting at?"   
"Not really," Willie said, "What happened to all the fucking   
crayons?"