specifically asked for the night sky in this episode to look like a black piece of paper with holes cut into it for stars, just as it was in the pilot episode. Stone and Parker were especially proud of the animation of the lava, which they said took hours to perfect, although they acknowledged it ended up simply resembling orange construction paper. The lava ball shooting out of the volcano and almost killing Kenny was directly inspired by the Volcano film. Parker and Stone came up with the character of Scuzzlebutt during a random conversation with Comedy Central executive Debbie Liebling. While meeting with her, they simply started drawing the character, and decided to add a celery hand and Patrick Duffy leg for no particular reason. Scuzzlebutt also appeared in a second episode, "City on the Edge of Forever" from the second season. Scuzzlebutt turning out to be a real character rather than a ridiculous story was the first instance of a common characteristic of the Cartman character, in which Cartman says outrageous and completely unrealistic things that turn out to be true. Stone commented, "He's right more often than he's wrong." The "Volcano" episode was in production when South Park debuted on August 13, 1997. Comedy Central executives did not object to most of the content of the episode, but said the scene in which Kyle farted while talking to Stan should have been removed because nothing happened after the fart, and they said it was not funny. Parker and Stone, however, insisted it stay in the episode, and they said the lack of any reaction whatsoever to the fart was what made it funny. During close-ups of Cartman's face while telling the story of Scuzzlebutt around the campfire, the flames from the fire stop moving. Parker and Stone noticed the consistency error after the episode was filmed, but they did not have enough time to go back and fix it before the broadcast date, so it was left in. A cat featured in the background of one of the outdoor scenes was designed to look exactly like Parker's cat, Jake. The scene in which Ned catches fire was based on an experience Parker had during a Colorado camping trip where he tried to do an "Indian Fire Trick", in which one pours gasoline onto a fire to create large flames. Although nobody caught fire, Parker said the trick