Those who are tasked with nourishing another, be it from parent to child, or boss to subordinate, must always remember the fundamental needs of human nourishment. Mental manipulation occurs when a parent or caretaker exclaims "I pay for the roof over your head and the food you eat, and thus you must respect me!" This is a common root of suffering in a family dynamic where the often missing ingredient - love - is mistaken with the provision of resources and objects. Objects can never fill the void of love.