Goofy performing another song and dance show. Mickey and his gang's animated shorts by this point routinely featured song and dance numbers. It begins as a typical Mickey cartoon of the time, but what would set this short apart from all that had come before was the appearance of a new character, whose behavior served as a running gag. Dippy Dawg, as he was named by Disney artists (Frank Webb), was a member of the audience. He constantly irritated his fellow spectators by noisily crunching peanuts and laughing loudly, till two of those fellow spectators knocked him out with their mallets
Cartoon physics a cliff, gravity has no effect until the character notices. In words attributed to Art Babbitt, an animator with the Walt Disney Studios: "Animation follows the laws of physics—unless it is funnier otherwise." Specific reference to "cartoon physics" extends back at least to June 1980, when an article "O'Donnell's Laws of Cartoon Motion" appeared in "Esquire". A version printed in V.18 No. 7 p. 12, 1994 by the Institute of Electrical and Electronics Engineers in its journal helped spread the word among the technical crowd, which has expanded and refined the idea. These laws are outlined on dozens of websites.