Marx Brothers from singing with comedy to comedy with music. The brothers' sketch "Fun in Hi Skule" featured Groucho as a German-accented teacher presiding over a classroom that included students Harpo, Gummo, and Chico. The last version of the school act was titled "Home Again" and was written by their uncle Al Shean. The "Home Again" tour reached Flint, Michigan in 1915, where 14-year-old Zeppo joined his four brothers for what is believed to be the only time that all five Marx Brothers appeared together on stage. Gummo then left to serve in World War I, reasoning that "anything is better than
Harpo Marx was occasionally referred to by the other Marx Brothers, who were careful to imply that his character's not speaking was a choice rather than a disability. They would make joking reference to this part of his act. For example, in "Animal Crackers" his character was ironically dubbed "The Professor". In "The Cocoanuts", this exchange occurred: In later films, Harpo was put into situations where he would repeatedly attempt to convey a vital message to another person, but only did so through nonverbal means, usually by whistling or pantomime. These scenes reinforced the idea that the character was unable to speak.