Sabrina's friends help foil a plot to cheat Aunt Hilda out of her beachfront property.; Sabrina wants to decorate her room in a normal human way, but the decorations she chooses are ones that were created to ward off witches.; To stop her from making friends with humans, Della reverses Sabrina's powers so that every helpful spell will cause harm instead.; Suspecting that Sabrina is a witch, Reggie tries to trap her into admitting it by asking her to define "witch."; Hilda is in a bad mood.; Hilda is back from the beauty parlor.; Aunt Hilda emulates the new generation's belief in doing your own thing and telling it like it is.; Hilda won't let Sabrina go outside wearing hot pants.; Sabrina tries to keep Harvey's tire from leaking.