About a year ago I sold a Walther PPK/S I had bought for my wife (wish I hadn't done so). I am in the position to buy another one within the next 6 months. Numerous people told me forget it, the .380 won't cut the mustard for self defense (in the home, i.e. burglar, home invasion etc) especially if the suspect is all hopped up. They advise a 9mm. What say you all and thanks in advance.