Periodiko wrote...
Seriously? What could you possibly do with two knives that you couldn't with one? With a weapon as short as a knife, wouldn't you be far better off just using your other hand to grapple?
You could... NOT lose the fingers on your left hand?
I take it you've never been in a fist fight that didn't devolve into two adolescent boys rolling around on the ground? Here's the scenario: There's a guy across the room that is going to punch you. You want to punch him first. If you walk up to him and take a swing with one hand - and he's expecting it - you're not actually going to hit him with any efficacy.
You might as well ask, "Why don't boxers only use their right hand?"
Pro-tip: Real life isn't a video game. If the opportunity present itself to use your left hand to grapple, you don't have to pause and go into the inventory screen to disarm your off-hand. You just have to drop the knife.
And you renfair dudes - don't you think there's a possibility that the sterile environment of simulated/play sword-fighting and everything that entails might favor gimmicky weapon styles over an actual battlefield or brawl?
And for that matter, don't you think "getting knocked on your ass" is sort of a secondary consideration when people are trying to use giant pointed pieces of metal to penetrate your organs?
Pro-tip: It's easier to stick someone with a pointy piece of metal when they're lying on their back.
http://www.pennsicwar.org/penn39/As per the "sterile-simulated renfair sword-fighting", I've seen battles lines involving hundreds of dudes in 80 lbs of steel plates. I've seen a piece of rattan break bones through 10-gauge steel armor. At the very least, your sterile, simulated bruises are more than sufficient incentive to fight as realistically as possible.
From my experience, given the option, I would actually almost always choose a spear if involved in open-terrain hand-to-hand armored combat. Fantasy RPGs have never replicated this well. Alexander conquered the world with long, pointy sticks.