The Grey Hounded Hare is a cartoon starring Bugs Bunny.
Bugs decides to pay a visit to a dog racetrack. While the dogs are eating, he checks some of them out. When he looks dog #7 ("Gnawbone") in the mouth, the dog gets angry and lunges at Bugs. Mistaking a mechanical rabbit for a real female rabbit, Bugs falls in love with it and and attempts to save "her" from the pursuing dogs. Chaos ensues!