Havesomeseichel’s comment that a Rav once said every Jew should have two guns, is a perfect example of a Rav making a stupid suggestion, and shows that when people quote a Rav it doesn’t necessarily mean anything. I wonder if Queen of Persia would run out and buy a gun because a Rav said so….Da’as Torah!
The fact is that when people have guns in their houses, more innocent people are shot by accident than are burglars or other criminals.