The Bellicose Bathroom

"The Bellicose Bathroom" is the title of the novel Arthur is seen reading in Season 12, Episode 7, "I Owe You One," in which Buster tries to repay all of the favors he owes Arthur by helping everyone whom Arthur owes favors to.

When Buster knocks on Arthur's door with the intention of raking his leaves in order to pay him back, Arthur replies that he does not wish to be disturbed, because he is busy reading "The Bellicose Bathroom." Though the storyline of the novel is unknown, Arthur enjoys the story.