The naughty graffiti at Pompeii have entertained archaeologists and students of the classical world at least since the city’s rediscovery in the eighteenth century. Before that, when it was a thriving watering hole for rich Romans, the lewd drawings and inscriptions presumably entertained the denizens of that cosmopolitan outpost as they went about their daily lives.

It’s a good thing they didn’t try any of that randy badinage at a modern American liberal arts college. At those citadels of moral sensitivity, they would be likely to find themselves—as a still-unknown perpetrator of graffiti at Williams College finds himself—hounded as a social pariah and the object of an article in The Huffing-puffington Post titled “Violent Hate Speech ...