Animals in many cartoons may act like humans. Groening does not want this happening in "The Simpsons" and makes animals in the show act like real animals. This is how the animals in the episode act. Mirkin said they might not do this only for visual gags. Everything else has animals acting how they would in real life. Frank Welker made the animal sounds in the episode. Mirkin was happy with Welker's work and said "He can do anything, and it fits perfectly. You forget you're listening to a guy". Groening also thought he was very good at making animal sounds.