Expressing dissatisfaction with medical care in the 17th century

Dutch School, 17th-century
Oil on canvas mounted on board

... the scene is one of a physician conducting a uroscopy for a female patient... The overt hilarity of the old woman deliberately emptying her piss pot on the physician’s head would have been instantly appreciated by any contemporary viewer of this work.

Painting from the Fisher Collection; Photo by Will Brown. Found at the Chemical Heritage Foundation Flickr photostream.

Via Uncertain Times (now in a new location - revise your bookmark).