The [Progressive Labor] leaders became so paranoid over the issue of their public 'image' that they told members to shave their moustaches, wear coats and ties, forget the cowboy boots, be careful with whom they are seen, stay away from people who take dope, date only certain girls, attend classes regularly, and watch their language in public. Strange concepts, indeed, for Communists who at times attempted to pose as libertines.

pp. 3-4 - Road to Revolution: Communist Guerilla Warfare in the U.S.A. (1967)