Season # 3, Show # 2 - S3.E2

After starring in a cartoon as the temporary straw-and-wood-house-buying dupe of Three wolf-wary and dishonest Little Pigs, Bugs lectures about dogs, but first must struggle with a projectionist who, when Bugs says that the lecture is about man's best friend, shows a picture of a tarantula and then a Whistler's Mother portrait, presumably because, "A man's best friend is his mother." When Bugs clearly states that he intends to talk about dogs, the projectionist flashes a picture of a wiener (a hot dog). "The domestic dog," retorts Bugs, and a picture of a wiener in an apron instantly appears.