Manners in School

Larry, an obnoxous, ill-mannered little brat, is given detention after school and has to clean the chalkboard. However, instead of cleaning the chalkboard, he draws a cartoon-like character--which comes to life and convinces him that all of his problem result from the fact that he is a spoiled, nasty mannered little twerp. Larry vows to change his ways and become a good student.