" Officers with lace on their gray sleeves and civilians in black claw-hammer coats bustled in and out of Mechanic's Hall, as if the place were an ant's nest, with some workers going forth to forage and others returning with their spoils. Luke pulled up right in front of the building. A Confederate with the two stars of a lieutenant colonel on his collar shouted, "You damned stupid nigger, what do you think you're doing, blocking the-" The words stuck in his throat when Lee got out of the carriage. He pulled himself to attention and snapped off a salute that would have done credit to a cadet from the Virginia Military Institute.

Lee turned and said, "Thank you, Luke," before he returned it. The black man smiled a secret smile as he took the team around the corner to find a place to hitch it. "

― Harry Turtledove , The Guns of the South