Changes

There have never been any similar treaties involving conventional weapons, although one might consider a barroom armed standoff to be an instance where one would be a good idea - "you put down your gun while I put mine down - slowly, now - and we'll let cooler heads prevail".  Such a situation might reduce injuries to bystanders (we can safely assume the people who pulled the guns don't mind getting shot).

There have never been any similar treaties involving conventional weapons, although one might consider a barroom armed standoff to be an instance where one would be a good idea - "you put down your gun while I put mine down - slowly, now - and we'll let cooler heads prevail".  Such a situation might reduce injuries to bystanders (we can safely assume the people who pulled the guns don't mind getting shot).