dirty johnny at his best

Little Johnny and his classmates are supposed to draw a picture on the board.after returning to his seat the teacher called on Ernie next: Ernie returned to his seat. Now it was Suzy's turn Suzy returned to her seat. Next, the teacher called Jerry to the board

Jerry returned to his seat. Kim was called to the board.
About this time little Johnny began waving his arm hysterically. Little Johnny was well-known for being dirty-minded, so the teacher was reluctant to call on him for anything. But as the teacher looked at the picture on the chalkboard, she thought that there was no way that little Johnny could possibly do anything to make this picture dirty. So she called on little Johnny, and he ran to the chalkboard.

dirty little johnny had done it again............