Screwy Squirrel - Lonesome Lenny (1946)

Screwy Squirrel becomes the playmate of a lonesome, dopey, and strong dog Lenny, in a broad parody of John Steinbeck's "Of Mice and Men".
Lonesome Lenny is a 1946 Screwy Squirrel cartoon directed by Tex Avery and released to theaters on March 9, 1946 by Metro-Goldwyn-Mayer. It is the last Screwy Squirrel cartoon; he is "killed" off on-screen at the end of the short...although personally I take this "death" about as seriously as a comic book death.
Voice cast:
Wally Maher as Screwy Squirrel and Pet Store Owner (uncredited)
Dick Nelson as Lenny the Dog (uncredited)
Sara Berner as Lady (uncredited)