"The S-Word" is the eleventh episode of the second season it aired on January 21, 2008.
The show begins with a news report of a third grade teacher being suspended without pay for calling Riley the "N word" (Nigga). Mr. Petto (Fred Willard) then says on the news there is a difference between nigga and nigger. Robert wants to sue him for restitution. However, Huey believes they should not take legal action because of the selfish reasons motivating it. Despite Huey's warning, Granddad decides to sue.