Juan buys four term papers - one for each Sweathog - from Carvelli, only to end up with an essay that Gabe had turned in eleven years earlier. DETAILS: Instead of writing their own term papers for Gabe's class, the Sweathogs choose to buy old "guaranteed A papers" for $5 each from Carvelli. Epstein's paper is on Franklin D. Roosevelt ("a mighty knight who fights for what's right"), Horshack's is on Joseph Stalin, Freddy's is on the Dust Bowl, and Vinnie's is on the Irish Potato Famine ("Great French Fry Phantom"). When Gabe grades Epstein's paper, he recognizes it as the same paper he handed in 11 years ago, so he gives all of them F's. Epstein then demands Carvelli refund their $20 per his guarantee, but Carvelli weasels out of that. Gabe tells Epstein he knows that Carvelli is selling used term papers and to thwart future use of the papers, Gabe passes around a list of them to all teachers and schools. Gabe then gives the Sweathogs one more chance to do the paper because, as he admits, he may have turned in that paper on FDR 11 years ago -- but he never said he WROTE it. (thetvdb.com)