Courage the Cowardly Dog - Season 2 Episode 9 -

Doc Gerbil, a fake vacuum cleaner seller,comes to Courage,Eustace, and Muriel's House and takes out a vacuum cleaner and sucks up Muriel and Eustace into it. He takes them to his labratory and puts them in a human habitrail. He peforms experiments on them. Courage manages to get them back.