The Simpsons Episode 3.03 When Flanders Failed

Ned Flanders decides to open his own business called the Leftorium, a store that sells tools and products aimed at left-handed consumers. Homer, filled with resentment towards Flanders, hopes that the Leftorium fails. Needless to say, the business is not a smashing success and Flanders goes broke, forcing his family to sell their furniture and possessions in a tag sale. Wracked with guilt, Homer enlists all of the left-handed people he knows (including Mr. Burns and Moe) to buy Flander's wares and save his neighbor from financial ruin.