As far as I'm concerned not everyone is the same the object causes the justification of what the user is intending. Its the user that will ultimately do what he or she thinks is right or will do what they want. There's always gonna be someone doing harm and someone resisting it. Theres a handful of people that would be like "Man if i had a gun in that situation i would've at least attempted or tried to stop him knowing i was armed preventing deaths." Maybe the person dies in the process, so what... but he tried right ?