Donald is trying to sell brushes door-to-door, but since nobody can understand him, nobody will buy anything. He happens across a street vendor selling voice pills. They work great, but he's only got a limited number so of course, the last pill ends up in various inconvenient places.
Director:
Clarence Nash
Donald Duck (voice) (uncredited)
Ruth Clifford
Daisy Duck (voice) (uncredited)
Leslie Denison
Suave Donald Duck / Cow (voice) (uncredited)