Gilbert and Sullivan change the characters, which Sullivan found artificial and lacking in "human interest and probability", as well as being too similar to their earlier opera, "The Sorcerer". As dramatised in the film "Topsy-Turvy", the author and composer were at an impasse until 8 May 1884, when Gilbert dropped the lozenge idea and agreed to provide a libretto without any supernatural elements. The story focuses on a "cheap tailor," Ko-Ko, who is promoted to the position of Lord High Executioner of the town of Titipu. Ko-Ko loves his ward, Yum-Yum, but she loves a musician, who is really the son of the
Gilbert and Sullivan de Corneville"). Hundreds of unauthorised, or "pirated", productions of "Pinafore" appeared in America. During the run of "Pinafore", Richard D'Oyly Carte split up with his former investors. The disgruntled former partners, who had invested in the production with no return, staged a public fracas, sending a group of thugs to seize the scenery during a performance. Stagehands successfully managed to ward off their backstage attackers. This event cleared the way for Carte, Gilbert and Sullivan to form the D'Oyly Carte Opera Company, which then produced all of their succeeding operas. The libretto of "H.M.S. Pinafore" relied on stock character types,