A man is walking past a lunatic asylum with a high wooden fence which he cannot see through. From inside the fence he can hear voices chanting “Thirteen! Thirteen! Thirteen…” Intrigued, he finds a small knothole in the fence so he tries to peep through to find out what’s going on. As soon as he does this, someone pokes him in the eye with a stick, forcing him to fall backwards clutching his face in pain. From inside the fence he hears:
“Fourteen! Fourteen! Fourteen…”