I kid you not. I saw a knife today that would work very well for killer whale defense. I don't know how you'd hold it, but if you could it take an orca in one slash.
My work today took me to a steam turbine factory where I went on a tour of the shop floor. There it was, a blade on a metal planer designed to take an eight foot wide shaving off a bar of stainless steel. Not eight feet long, eight feet wide.
Unbelievable.
By far the biggest, strongest blade I've ever seen.
"Here, little fish . . . "
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I don't want my children fed or clothed by the state, but I would prefer THAT to their being educated by the state.