My method-
-Make it legal for 17 year olds to purchase handguns if they pass background checks
-Eliminate "gun free" zones that invite psychos to become predators
-Buy a pistol
-Obtain training and have it documented
-Obtain CCW
-shoot the person trying to kill me
-If I kill someone with my pistol not in self defense I expect to be arrested, tried, convicted and executed
-If I refuse to obtain the means to protect myself I expect to die in an "active shooter" situation even though I curl up in a fetal position
That said, my chances of being in an active shooter situation are less than being killed by a lightening strike or done in by killer bees
Link: https://newyork.cbslocal.com/2018/11/14/surviving-an-active-shooter-now-part-of-college-coursework/