Pluto's Housewarming (1947)

Pluto has just finished moving his bones into a spiffy new doghouse when a turtle comes along and starts moving them out. While Pluto is dealing with the turtle, Butch takes up residence. Butch chases Pluto back to his grungy old doghouse, and now it's his turn to deal with the tenacious little turtle. The turtle wins, and he and Pluto become friends.