Scandinavia and the World

Comments #9822846:

Armed to immobilize 4 10, 11:32am

'@Isdaril' "How do you use a gun for self-defense ?"
Threaten or kill someone who tries to threaten or kill either you or someone around you.
Limits of self-defense are usually described in local laws, in some cases it's ok to cave in burglar's skull with a baseball bat, provided that you didn't hit too many times.

"For example if you kill someone that is robbing you"
If criminal is unarmed, you can either scare him away or hold at gunpoint. If you shoot an unarmed man and can't prove that he physically attacked you, it's jail time for you.
Armed robbery by definition involves threat of death or injury by either a gun or melee weapon, in that case use of deadly force in return is perfectly valid.

"A self-defense tool should allow you to stop the agressor without killing him if you want it to have good utility value"
There is no such self-defense weapon. Tasers and pepper spray can get you killed or maimed if they don't work, and they often don't work. Best explanation about tasers is this video - . For pepper spray you can search youtube for words "oc redman", then remember that spray effectiveness is affected by range, wind and rain. Aslo, using spray in an enclosed space means everyone in it will feel the effect, including the user.
That's the reason why in US, for example, cops try using tasers or other less-lethal options when they are covered by someone using the actual gun.

"Less-lethal" guns and/or ammunition are unreliable - weaker cartridge means that they will be ineffective against target at range, using cover (i.e. chair, piece of plywood, etc.) or just wearing winter or leather jacket. Stronger cartridge means that someone at close range and wearing only a t-shirt can get all sorts of lethal or nearly lethal trauma like pierced lungs, brain damage, damage to liver or kidneys.

Also, this happened recently:
I'm actually waiting to see if there will be a serious proposal to ban or limit use and possession of sword-like objects in Finland.