Beach Picnic (film)

After preparing the food, he tries to ride on an inflatable horse named Seabiscuit, but gets repeatedly bounced off of it, annoying him.

Donald then spots Pluto sleeping soundly on the shore, and decides to prank him by pushing Seabiscuit near him and mimicking a horse's whinnying.

The mesmerized Pluto tries to chase Seabiscuit around some rocky reefs, but gets repeatedly frightened by the horse bumping him from behind.

Getting angry, Pluto bites on the rubber horse's air valve, causing him to inflate like a balloon.

After a long struggle, Pluto flies backward and bumps into Donald, causing the flypaper to get stuck on their bottoms.