Doonesbury by Garry Trudeau for April 05, 1971
Mike: Mrs. Jackson? I'm Michael Doonesbury, Rufus's new tutor... Mrs. Jackson: Oh, yes, come in. I was kind of hoping the University would send a black student. Rufus's last white tutor only lasted a week. Rufus, this is Michael Doonesbury. I hope you'll make him feel right at home. Rufus: Welcome, you dumb honkey.