Old MacDonald Duck
Donald owns a farm; he sings Old MacDonald while feeding the animals. He goes to milk Clementine the cow, but she’s not in the barn: she’s up a tree, nibbling on leaves. She floats down, and the milking goes well. Her tail stops swinging; Donald leans over to check and it swats him in the face. The milking is again interrupted by some flies buzzing around; Donald pulls his hat over his head and the fly gets inside, in the confusion, Donald gets his hat and pail confused. Donald starts firing milk at the fly in retaliation, but the fly manages to get the cow to send Donald flying.
Donald as a farmer, defeated by a cow and then by a fly. The two-part structure is common in the shorts — an opening musical section to establish the world, then a single antagonist to destroy it — and the fly sequence is a small masterpiece of frustration comedy.