Yes, and gang members who want to feel big in front of their buddies, that would not change by very much. However the chances that the average Joe flips his lid, or gets stinking drunk or holds a grudge pulling out a gun and indiscriminately kills children and/or shoppers diminishes to almost zero.<quoted text>The point is... Make a law banning guns then only criminals will have guns.
Criminal behaviour (particularly violent criminal behaviour) is quite rare and even more rare in countries that have gun control. It is no coincidence that the number of violent crimes involving firearms is between 4 and 20 times worse in countries without gun regulation than countries with gun regulation.
Tell me do you associate with criminals and gang members? Do you go shopping? Do you have kids in school?
What you are advocating is a cold war between criminals and the average Joe. When the criminal knows he is likely to be faced with a firearm he is more likely to take the stance of - do onto others as they would hath done unto you, only do it first.