Other critics state that the NAP is unethical because it does not provide for the violent prohibition of, and thereby supposedly legitimizes, several forms of aggression that do not involve intrusion on property rights such as verbal sexual harassment, defamation, boycotting, noninvasive striking and noninvasive discrimination. If a victim thus provoked would turn to physical violence, they would be labeled an aggressor according to the NAP. However, supporters of the NAP state that boycotting and defamation both constitute freedoms of speech and that boycotting, noninvasive striking and noninvasive discrimination all constitute freedoms of association and that both freedoms of association and of speech are nonaggressive. Supporters also point out that prohibiting physical retaliation against an action is not itself of said action, and that generally there are other, nonphysical means by which one can combat social ills (e.g., discrimination) that do not violate the NAP. Some supporters also state that while most of the time individuals choose voluntarily to engage in situations that may cause some degree of mental battering, this mental battering begins to constitute unauthorized physical overload of the senses (i.e. eardrum and retina) when it cannot be avoided and that the NAP at that point does apply.