The Precious, Wonderful, Adorable, Lovable Duckling Courage the Cowardly Dog : Season 1 Episode 20

Courage finds a duck egg, brings it inside, and gives it to Eustace. Eustace thinks he is going to eat it for breakfast, but finds out its still alive. It hatches and thinks Eustace is his mom. The duck becomes "Eustace's slave" and it is jealous of Muriel and Courage, which makes it do nasty tricks on both. Courage eventually puts a stop to this, in which...