 The original script featured the Bill character to be a master  chemist. The liquid in the syringe was pointed out to be a  concoction created by Bill entitled "Goodbye Forever". These  potions/elixirs were to be detailed by onscreen subtitles. The Bride  would also use a mix called "The Undisputed Truth" to get  information from Sofie Fatale. In _Vol. 2 (2004)_ (qv), Bill would  use "The Undisputed Truth" on the Bride.