Punch in the presence of the passenjare!
—Mark Twain, “A Literary Nightmare,” 1876
“A Literary Nightmare” is a short story written by Mark Twain in 1876. The story is about Twain’s encounter with an earworm, or virus-like jingle, and how it occupies his mind for several days until he manages to “infect” another person, thus removing the jingle from his mind. The story was also later published under the name “Punch, Brothers, Punch!”