Which is why Jet and Sam coddle him. Remember earlier this very season, during one of those moments alone with TTS, Jet said that Fatty was different from the other freeloaders: "Fatty . . . Fatty is family."
Whatever people think of him, production are genuinely invested in helping this fat retarded dysgenic autist from Battle Creek. Jet I think has a weird complex with internet freaks because he is one, and Sam I think wants to prove he can redeem Fatty as some statement about downtrodden white people getting their shit together.