There are eight profanity-laden unused quit messages defined in the game's source code. One of these messages refers to a person named "Ron", who designer John Romero later identified in a 1998 interview as Ron Chaimowitz, CEO of GT Interactive. The first seven messages are under a comment saying "FinalDOOM?", but this was added by Bernd Kreimeier when he was cleaning the source for release to the public. These messages were never intended for the game Final Doom; they were "development mode only" messages written by John Romero.