Check out this medieval brain surgery grifter

A malicious itinerant surgeon extracting stones from a grimacing patient's head; symbolising the extraction of 'folly' (insanity), by J. van der Bruggen after D. Teniers, (1600-1699)

Picture a town square in 1600s Europe. A smooth talking stranger promises to cure your relative's "folly" by removing stones from their skull, for a fee. Crowds gather to wa…