Glenn:
there is a guy who stabbed the endangered person in the head several times with a folding knife until the folding knife broke. The victim is rather short, light, +50yrs old and neither strong nor has he any fighthing background at all. The opposite: He used to be a pacifist.
The bad guy was captured, certified insane and locked up in a mental institution. Once the shrinks find him healed, he'll be out again. I estamate that to happen in 2-3 years. The bad guy might repeat his attack.
The victim despises guns and violence. Shooting means no fun for him just as soccer or basketball bore me to pieces. So, there is no chance to make him like or enjoy guns. IPSC, IDPA or any other gun sport/practice are not his interest.
So: His situation is the bad guy comes again, enters his room attacks. Our pacifist has no warrior-mindset and won't even realize the threat before he ist at least 3yds close. Most likely he will only react after the first blow to himself. So he needs no advanced shooting skills and practice. All he has to make sure is to hit a guy already physically attacking him and by no means hit anybody else accidentally.
He will never ever aqcuire the skills to fight an opponent who attacks him with a gun. But he could stop a knive-wielding weirdo with a proper handgun at hand-to-hand combat distance IMO. Probper handgun for that purpose (Glock 26, 27 or: a .38+P snub).
Please do correct me if you find my description and analasys wrong. Any good advice is crucial to us. We work in the same office. I however am not a pacifist...