Soup's On (1948)

Donald's nephews come to lunch filthy from playing outside. Donald sends them to wash up; when he finds they've done a half-hearted job, he sends them to bed without supper. They scheme to get food; Donald catches them, but falls off a cliff while chasing them. He's OK, but temporarily out cold. The boys build a fake corpse and dress Donald up as an angel, and he buys it for a while.