Doonesbury by Garry Trudeau for January 20, 1975
Duke: Quite a view, MacArthur, quite a view! Is the volcano still active? MacArthur: Semi-active, sir. But you needn't worry - we've got it on a steady diet of sacrificial virgins! Duke: Sacrificial virgins! You're kidding! MacArthur: No, sir - it's a time-honored custom! I hope you don't disapprove, sir. Zonker: Disapprove?! We're appalled! How long has this been going on, MacArthur?! MacArthur: 2,000 years! But we haven't had a single eruption! Duke: Can't argue with that. Zonker: DUKE! MacArthur: then it's okay, sir?