Hopefully the most complete list of Disney's animated short films on Letterboxd.
Alice Rattled by Rats
While Alice is away, her cat is guarding the house. He chases one pesky rat inside the house, and shoots a hole in the floor, which he falls through, into a vat of home-brew. With the cat thus away, the rats play, at first dancing and singing, and later playing in the bathtub. The cat eventually sobers up (after he lands in a cactus), and tries to blow up the rats (and house!) with a bomb, but the rats plant the bomb on the cat, who blows up himself, Alice, and several nearby trees.