Laughing Gravy (1931)

Stanley and Oliver try unsuccessfully to keep their pet dog, "Laughing Gravy" hidden from their grumpy landlord, who throws the pooch out into the snow. The rescue and further attempts to hide the dog result in mayhem, which is interrupted by the arrival of a registered letter informing Stanley that he's inherited a fortune from his rich uncle. There's one catch, though: he has to renounce his friendship with Oliver, who the uncle characterizes as a "nitwit."