There is a story about a man passing by a mental hospital who hears the patients shouting numbers. Initially, he hears "Thirteen! Thirteen! Thirteen!" but cannot see inside because the fence is too high. This symbolizes perhaps a limited understanding of what’s happening behind the walls or a sense of separation from the true situation.

"Did you ever hear the story of the man who walks past the mental hospital?" he said. "He can hear all the patients inside shouting, 'Thirteen! Thirteen! Thirteen!,' but the fence is too high for him to see what is going on. Then he spots a knothole in one of the planks. He looks through it, and bam-a stick pokes him in the eye, and he hears the inmates all shouting, 'Fourteen! Fourteen! Fourteen!'" He took a sip of his cocoa. "I mind my own business, Detectives." -James Patterson, NYPD Red 3