HJL,
As far as using (and abusing) knives go, there is at least one company that provides an unconditional guarantee (beyond warranty) on their knives. Busse knives advertises this, and I’ve not heard anywhere that they’ve refused to replace or repair one of their knives regardless of how or under what conditions it failed. I was introduced to their product by a couple of infantry sergeants out on patrol while in Iraq, and they made me a believer. Busse does not have a statement to the effect that they will void the guarantee on their products for any reason. – BPP