A Ham in a Role (Robert McKimson & Arthur Davis, 1949)

A Shakespearian dog, tired of being a pie-in-the-face looney tune, quits Warner Brothers to study dramatic acting and goes to his country house to practice the bard. He finds that two polite twin gophers have taken over his abode and angrily throws them out. They retaliate by violently heckling him in comical accordance with his Shakespeare speeches.