A Pest of a Pet - S1.E10

When Rhinokey decides to play a trick during Hoppo's audition for the ballet ""The Dying Swanpig"", the other Wuzzles manage to get a mockingbirddog to teach him a lesson. When he tries to hide from his new pet, he gets laughed at by his friends and feels ashamed about it and runs away. Suddenly all the mockingbirddogs get loose and raise havoc in the Land of Wuz. The Wuzzles realize that Rhinokey is the only one who can out mock the mockingbirddogs and convince him to come back. Rhinokey finally manages to capture all the mockingbirddogs, but also plays one last practical joke on Hoppo.