When Abraham Lincoln invents peanut butter; or more correctly, Mary Todd Lincoln invents it to ward off spirits, and plans to use it to win over the South by reporting a black man invented it in "Black Mystery Month", his assassination at the hands of John Wilkes Booth delays this until President Grover Cleveland leaves a jar of the peanut butter on George Washington Carver's doorstep. Roger mentions Grover Cleveland while inhaling helium balloons in "Toy Whorey".