For centuries the death penalty often accompanied by barbarous refinements has been trying to hold crime in check yet crime persists. Why? Because the instincts that are warring in man are not as the law claims constant forces in a state of equilibrium.
Psychology is as important as substance. If you treat people with respect they will go out of their way to accommodate you. If you treat them in a patronizing way they will go out of their way to make your life difficult.