you obviously know nothing about the
cane, or the knife, or stopping ability, or fighting, for that matter. I'd have no trouble justifying strikes at a man's limbs with a cane. Noone said anything about attacking anyone with a cane., either. Your places to kill a man with a 1" deep cut are not likely to be cut during an assault, and the knife use CERTAINLY is lethal force. The cane doesn't slow your gun presentation down in the slightest if it's not in the hand that you clear your outer garment with, but then that would require knowing how to use either hand at something besides scratching your butt, wouldn't it?
You don't have to kill a man in order to stop him. If I strike your weapon arm with a proper cane-stick, you wont HAVE that weapon any more. If I strike your leg, you won't be standing on that leg anymore, either. A proper stick-cane is made of hollow metal, and has 3 sides., you see.
It takes MANY seconds, even for MULTIPLE cuts or stab wounds to render a man unable to function, in nearly all cases. At knife cut distances, you are not going to HAVE that time. What you are talking-about, obviously, is using a knife on an unarmed man, and that will get you sent to prison.
I am still one of the top pistoleros in the world, and the hand to hand instruction I got (300+ hours of 1-4 guys in class, from a 5th dan TKD, 1st Dan Judo man, in Korea) is quite adequate, thank you very much. For instance, I can react, draw from a concealed belt rig, and hit 2 separate 10" disks, at 10 ft, 5 ft between them, any time you care to see it, from hands at shoulder height, in 1.2 seconds. That aint too shabby, considering it's done with a lw commander .45 and full charge loads, from under a shirttail.