Doonesbury by Garry Trudeau for February 02, 1973
Man: You know how this whole "pig" thing started, don't you? Through your permissiveness, that's how! Woman: now, dear... Man: It's true! You had to go send Mary to some radical daycare center where she picked up these ideas! Well, I'm telling you something, Judy! Since you won't take a hand in giving this kid a set of moral imperatives, I will! From now on, I want you in by ten! Girl: Aw, Daddy!