The Facts of Life - Season 3 Episode 20 -

During the preparations for a box lunch charity auction, the girls are gazing over an Eastland/Bates "Slam Book", in which those writing the comments are identified by numbers instead of names. Mrs. Garrett is horrified by the cruel comments in there. When Blair reveals to one of the Bates boys that Natalie is number 10, Natalie gets her revenge by telling a Bates boy named Carl Price, whom the other boys tease because of his severe acne, which of the box lunches belongs to Blair.