As the crippled man walked, his shadow detached itself and slithered away. It slid across the ground, rising as it encountered a fence. It oozed up the fence and disappeared over the other side. It went away quickly, and not for fifteen minutes did the crippled man notice it was gone. As he passed a fat woman with a package under her arm, he observed her obese shadow rumbling along before her. He saw nothing on the pavement before himself; he looked back and up the glaring street light, and back to the fat woman's shadow. "I have no shadow," he said aloud so the woman could hear.
From "Revolt of the Shadows"
By Harlan Ellison
1957.