When the Cat's Away is a 1929Mickey Mouse short, notable for being the only time Mickey and Minnie are portrayed as actual mice. It was released on May 3, 1929.
Kat Nipp lives by himself in a cabin near the woods. One day, he goes out for a hunting trip after drinking a bottle of moonshine. Then Mickey, Minnie and an army of burglar mice enter his cabin in order to steal some food and money. There, they find several musical instruments and spend the afternoon playing them and eating Kat Nipp’s food.