The Knife That Can Make Things Explode From the Inside

Ever heard of a knife that doesn’t just cut — but can inject pressure strong enough to make its target burst from within?
This legendary weapon is called the Wasp Injector Knife, originally designed for divers to fend off dangerous sea creatures.
Some say it’s just a myth… others claim they’ve seen what it can do.
So, is it real — or just a story gone too far?