So I was looking through Wikipedia's list of fictional mentally ill characters, and what did I come across? Katz. That demonic red cat from that horrible, horrible cartoon show "Courage the Cowardly Dog."
It makes me sad to know that people actually make wikipedia pages on subjects like this... I'm not pro-eugenics but in this case I sincerely do believe that whoever has the time and interest to make a page on a villain from a dumb children's show should honestly be hunt down and shot in the face.