A film portrait of Stanley Maupin who cleans sidewalks at night for the Dallas Department of Sanitation. A film portrait of Stanley Maupin who cleans sidewalks at night for the Dallas Department of Sanitation. A film portrait of Stanley Maupin who cleans sidewalks at night for the Dallas Department of Sanitation. A film portrait of Stanley Maupin who cleans sidewalks at night for the Dallas Department of Sanitation.