In the safety of your hospital ward, do these patients have deadly weapons? Do they have large steak knives? Are there civilians nearby that you are responsible for?

Luckily, we are a sovereign country and adhere to our own laws and not “international standards”.

Please don’t ever become a cop. If you have a family, I doubt your spouse or children would rather you try to fight a deranged person with a knife instead of taking all precaution to keep your self safe and coming home to them that night.

No, that's not why cops carry Tasers. It's why cops carry handguns. A knife is a DEADLY weapon. You don't use less lethal options of force when deadly force is used against you. That's how cops get killed.