Heathcliff and Owner-Man venture to a pet store, where Owner-Man buys mouse litter. Realizing the shame inherent in doing this, he forces Heathcliff to carry it, then belittles him. Heathcliff, if he could speak, would point out how he's a cat and thusly doesn't know what shame is, and then would also likely explain that he wasn't the one who bought the shit, being as he can't apply for a bank account/wouldn't know what money was, either.