Gopher Broke is a 1958 Warner Bros. Looney Tunes cartoon short directed by Robert McKimson.
The Gophers spend most of the rest of the cartoon using psychological wear-down tactics to drive the dog insane and remove him as a threat to their well-being.
Meanwhile, the pooch tries to convince himself that all that is going on is nothing but a bad dream (consulting Sigmund Fraud and using sleeping pills to laugh off each attempt).
In the end, the Gophers get rid of their foe for good by tying a harness around the sleeping dog's belly, then attaching it to a hot air balloon before launching it (getting a tear in it as it goes up), leaving them free to "raise their vegetables" into a long pipe leading from the barn to their burrow.
After he wakes up and realizing his surroundings, the dog mentally snaps, then flaps his front legs up and down and begins to fly!