Between working men and women (which may include "free" wage earners, chattel slaves, indentured labourers, sharecroppers, domestic servants, and many others) and those employing them, there has always been a constant - mostly silent but sometimes overt - struggle concerning employers' discretionary power and over the interpretation of formal and informal rules. There is a constantly shifting frontier of control, that is, an ongoing struggle for control in the workplace, with managers and supervisors trying to increase their power over their subordinates, and their subordinates, in reaction,...