OK, back on topic. The Allegheny County Health Department developed a series of hand hygiene signs based on literary classics way back in 1999 to stop a shigellosis outbreak. The project, called Literary Classics: A New Kind of Reading Material for Public Restrooms won the prestigious J. Howard Beard Award from the National Association of County and City Health Officials. The nine hand-hygiene signs were based on work by authors Jane Austen, Charles Dickens, Judy Bloom, Mark Twain and others. All are available here in JPG or PDF. Amazing.
h/t Melissa Ward