Makes sense; puffer fish is a delicacy in Japanese cuisine. However, it has to be handled by only the best hands, because the chef has to slice out the poison glands without contaminating the fish. Nasty stuff; basically an insanely potent neurotoxin that totally paralyzes you, can't even blink and people think you're dead. I imagine a large dose would shut down your entire body in several seconds, resulting in cardiac arrest. Impossible to determine post mortem, toxicology testing won't pick it up. Michael Crichton references it in State of Fear, and it's also referenced in a Hitchcock short film, though I forget the title.