Dr. Julius Hibbert is the most promient, competent doctor featured on The Simpsons. If we wanted to talk incompetent, we'd be talking Dr. Nick! Hibbert is very good nature and always laughing. Good guy.
Dr. Hibbert: You have twenty-four hours to live.
Homer: Twenty-four hours!
Dr. Hibbert: Well, twenty-two. I'm sorry I kept you waiting so long.
Dr. Hibbert: Um, your wife agreed that I should break this to you.
Homer: No need, Doc. I can read Marge like a book. (Looks at Marge, who is very glum.)
Homer: Ooh, it's good news, isn't it?