Within the same scene, as part of the DVD edit, as Richie says, "I know what you gypsies get up to when the lights go out...", a siren is added to the audio track as a distraction from another usage of the word "gypsies".
During the DVD editing process, Richie utters, "I know what you gypsies get up to when the lights go out," and a siren is added to the soundtrack to mask another instance of using the word "gypsies."