Animaniacs
Mobster Mash (1x115)
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The Warners go to an Italian restaurant for lunch. When Don Pepperoni the Godfather of the Italian Mob arrives he sees that they are sitting in his private booth. He tries to kick them out, but they refuse to go. They also insist that the Godfather is their waiter and treat him as such. Eventually he gives in to them and serves them spaghetti.