Good point. A taser could also be a viable non-lethal alternative. Although personally, if I thought I was a target for ISIS, being &quot;non lethal&quot; would be the last concern on my mind.  But mace or a taser may be more practical than a gun for other reasons anyway, depending on the circumstances.<p>Another thought, as obvious as it may seem, is to suggest simply trying to <i>not</i> be alone as much as possible.  &quot;There&#x27;s safety in numbers&quot; as they say.  Maybe try to arrange to be in a (known friendly) crowd as much as possible.