In the Simpsons principal Skinner is evil especially to Bart Simpson, Nelson Muntz and Jimbo and his gang. He is not evil or a demon or something but he is mean and dumb and it reminds me of the book The demon hedamaster. Prinipal Skinner often gives Bart to either wright something a 1000 times or make Bart to stay in school after school. The difference between The Simpsons and The demon headmaster is that The Simpsons is a tv-serie and The demon headmaster is a book and the demon headmaster is maybe to some scary but the Simpsons is just funny and not scary at all. In The demon headmaster the headmaster makes people do things they dont want to do and if they dont listen they get terrorized.
You have made an interesting connection between the stories. I miss your picture with a text to it. I know you did a picture but you need to post it on the blog.
SvaraRadera