Ancient Roman mosaic reveals the dirty jokes that kept men amused as they urinated

It seems humans have been scribbling dirty jokes on bathroom surfaces since the beginning of time. Archaeologists have discovered a pair of mosaics in a Roman-era latrine that depict well-known mythological scenes, each with its own raunchy spin. The 1,800-year-old mosaics, including an image of Narcissus admiring the reflection of his own penis, are an incredibly rare example of mosaic paving in the ancient latrines. Time has taken its toll on the ancient art piece, and only half of the Narcissus scene remains today. The mosaics feature humorous versions of the stories of Narcissus and Ganymede.