Chowder
The Trouble with Truffles (2x19)
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Truffles gets a new voice after Mung Daal tells her that her old one scares customers away. However, her new voice is so relaxed and non-threatening, so Chowder, Mung Daal, and Shnitzel no longer take her seriously and become feral primitives, leaving Truffles to decide between her new voice and her old one.