Surprised nobody has linked to british blades, great site for knifemaking. I’ve carried a simple Swiss Army knife everyday for the past ten years or so, if I leave home without it has the same feeling like you’ve forgotten your mobile phone. I’m a spark so if I don’t have snips I can use it to cut a bit of cable, open boxes or packaging, Put batteries into the child’s Christmas toys, open a beer, remove a splinter.
I don’t like using it for food prep or gutting animals as there’s places for nasties to hide so I have a few fixed blade knives for that sort of thing but as someone else said they’ve never been used as a weapon or designed to be used as one and never hurt anything that wasn’t already dead. I have a sog powerlock somewhere and it is a great multitool but a crap knife.