Ain't Nature Grand! (1931)

An animated cartoon from the Warner Bros. Looney Tunes and Merrie Melodies series of cartoons, The cartoon starts off with a lake reflection of Bosko and his dog (Bruno - is that his name?) and they are whistling and barking along the riverbank ready to go fishing. As the dog barks, much to the annoyance of Bosko for some reason - asks his dog to "go home"