This Dennis the Menace strip actually ran in 1970, hard as it might be to believe. You’d certainly like to give creator Hank Ketcham the benefit of the doubt, but … wow.
The Cleveland Press actually ran an apology the next day:
Yesterday’s DENNIS THE MENACE cartoon offended a number of Press readers. The Press apologizes for the affront caused by the cartoonist. It assures subscribers that such a thing will not happen again.
Dennis the Menace still runs in over 1,000 newspapers, although it’s now drawn and written by Ketchum’s former assistants, Marcus Hamilton and Ron Ferdinand.