Quote from Ms. Ingram in the episode A Broom Closet and Satan's Monopoly Board
George: So he hasn't been in any of your classes? Ms. Ingram: Mm-mm, not a one. Ms. MacElroy: Nope. George: But I bring him here, I take him home he's got to be somewhere in the building. Ms. Ingram: Mm, I might've seen him in the library. But at this point, I sometimes think I see him when I'm alone in my house. Ms. MacElroy: Like that creepy Chucky doll in the movies? Ms. Ingram: [laughs] Exactly!