Taser use to compel compliance is wrong but taser use to manage a life threatening situation
without deadly force is what it was designed for.
The problem is that a knife needs no power to kill someone. A solid
touch can go to the bone,
cutting arteries and nerves that may never regenerate.
Flailing around with a knife is a deadly activity and no one should be asked to step into it to stop it.
I gave a blunt and dull kitchen paring knife to a small 20 something lady and had her 'stab' a leg of pork.
She not only easily stabbed through into the bone without any training but got it so deep she couldn't pull it back out.
If his delerium caused him to carry a knife, it may also have caused him to attack or flail at anyone who came near.
Bullet proof vests do not stop knives and an 80 year old invalid who started flailing around
in a delerium is a deadly threat.
He is sorry he was tasered but if he had killed someone or ruined their career or fulness of life permanently
by cutting him, he might just wish he could go back in time and and choose the taser if he could.
The important features about surviving a knife attack that I have found are summed up in:
Surviving A Street Knife Fight: Realistic Defensive Techniques A video review.
This is not about how to beat someone trying to kill you with a knife. It is about staying alive through such a horrible experience,
That it is an incredibly hard thing to do and movies and some ignorant or uncaring martial arts teachers
try to lure customers by making it sound so easy if you just buy their system.
Ted