:shock: I'd say, if he wants to get rid of her, then buy the derringer, and make sure the life insurance is paid up. With a good pay off, maybe he can afford to buy the next wife a better gun.........
Simply because I have collected guns for many years, I have several derringers in the safe. I have fired most of these little guns, and will admit I can not hit the side of a barn at 10-15 paces. Unless a woman has spent a lot of time on the range, and has reached a level of proficiency greater than most people, then the gun would be useless unless she is setting in the bad guy's lap. She may not be able to do much better with a small revolver or auto, but at least she will have more chances of making a hit than she will have with the derringer.