For me, weapons are tools, for Protecting kids and Woman.
Best if WITHOUT fight, as a warning.
Knife is fast, so very useful for defeating more than one ill-trained and ill-equipped rapists or terrorists.
Perhaps later it'll be more efficient.
Friends & Allies can also contact me in the case of the need: firstname.lastname@example.org , and use these words as a Warning (NOT as a threat) if they are threatened by Terror, Rape or Oppression.