A Dog in a Mansion is a 1940 Terrytoons cartoon.
As the title suggests, a pooch is pampered in a mansion, but he sometimes doesn't appreciate the treatment proffered him.
A depiction of the life of a pampered dog belonging to a rich family. It gets egg-shampoos and all sorts of other annoying indignities heaped upon its shoulders when it had rather be outside digging in the dirt. It gets loose and invites various kinds of gutter and mongrel dogs into the mansion.