It's a known fact that if you are out sick and cannot do your job, you should stay home. Unfortunatly, when you are a high school principal this is a luxury you cannot have unless you have a substitute. Sadly, your sister's out sick as well. So who do you get instead? One Carapace Chrysalis. Hey, it was either her or Discord. Oh dear. Later, Celestia would realize the only thing her substitute would accomplish for the week was singlehandly uniting the student body against her in the total of one week. That's got to be a record... right?

Inspired by "Order of the Phoenix" and certain moments in it so credit to J.K Rowling for the original idea. Genius, that woman. Now expanded on the suggestion of KrspaceT!