Please, don't make un-necessary edits to articles only to receive badges. Sure, it's fine if you're adding things to articles that need to be there, but don't go adding pet categories to characters that don't have pets. It's a pain for other users to undo, and it's not very productive at all.
+WARNING for adding categories which do not belong to such articles (repeated action), duplicate categories and categories that belong to the merchandise sub-article. Also please ease up with the commenting.