The Fatal Glass of Beer (1933) - W. C. Fields

The Fatal Glass of Beer (1933) is a short film starring W. C. Fields, produced by Mack Sennett
Written by Fields and directed by Clyde Bruckman, the film is a parody of rugged stage melodramas set in the Yukon. Fields serenades a Royal Canadian Mounted Police officer with "The Fatal Glass of Beer", a mournful song detailing the evils of foul drink and bad companions in the big city. A zither accompaniment recorded for the film seldom matches the vocal, because Fields subtly changes keys when the zither does not, resulting in a humorously off-key effect.
Fields emphasizes the stagey satire by striking various poses and being overly theatrical with the dialogue. The most famous gag has Fields opening the cabin door periodically and exclaiming, "And it ain't a fit night out for man nor beast!", with some obviously fake snow thrown into his face a moment later. He would reprise that gag during the "play-within-the-play" in The Old Fashioned Way (1934).