... black list, which is turned over by this enterprising business house to a "collector," who is none other than the leading Camorrist, "bad man," or Black Hander of the neighborhood. A knock on the door from his fist, followed by the connotative expression on his face, results almost uniformly in immediate payment of all that is due. Needless to say, he gets his camorra—a good one—on the money that otherwise might ... — Courts and Criminals • Arthur Train