I am considering getting a gun for basic home protection. Our neighborhood isn't really "dangerous", and there are few-to-no B&E reports around. But I'd like to have a gun for basic self-preservation. I have never shot a gun in my life. Not that anyone in our family is against guns (dad has a few), but I just haven't had the ocassion to shoot one. So I'm an absolute rookie at this. I have a few basic questions. 1) I suppose I'm looking at a handgun/pistol here, and not something like a shotgun, right? Again, not looking to kill a bear, just basic self-defense. 2) In talking with others at work, I probably want something bigger than a .22, maybe something like a .357 or a 9mm. Folks have said that a .22 will barely sting to a crazed drugged intruder with adrenalin pumping. 3) Not having been a part of the gun world at all, is there risk in buying a used gun from a reputable gun store? I could tell anyone what to look for in looking at a used car, but know relatively little about guns, or what to look for. Thanks in advance!