In the coffee shop scene, when Halfrek is advising Anya to improve her vengeance, Halfrek warns Anya to remember what happened with "Mr. Czolgosz" (phonetically spelled "Cholgosh" in the captions for deaf and hard-of-hearing viewers). This is a reference to a moment in the episode "Superstar" in which Anya, while explaining what she used to do as a vengeance demon, said, "Vengeance wishes, on ex-boyfriends. I'd wish he was a dog, or ugly, or in love with President McKinley, or something." On September 6, 1901, a fanatical fringe Anarchist named Leon Czolgosz shot President William McKinley at the Pan-American Exposition in Buffalo, New York. Czolgosz is one of the main characters depicted in the
Stephen Sondheim/
John Weidman musical "Assassins;"
Joss Whedon, the writer of this episode, has given many interviews (mostly in conjunction with "Buffy"'s musical episode) in which he has expressed his admiration for the works of Stephen Sondheim.
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