Passive resistance as commonly understood implies the action of the weak, unarmed or helpless. It does not reject violence as a matter of principle but because the means of violence are lacking. As such it can even serve as a preparatory stage to acts of armed resistance. Its underlying objective is to harass or manipulate the opponent into a desired course of action. It may be associated with nonviolent direct personal action through demonstrations, picketing, vigils, fasts, boycotts, raids and blockades. These may endanger others against their will. Non-cooperation may take the form of disobedience of a law or command claimed to be unjust. This may include refusal to participate in military service or to pay taxes.