' Wrote:"The puffer fish is a delicacy in Japan. Only small amounts of the fish are edible and preparation is extremely difficult. Only highly trained chefs can remove the organs which produce TTX. Trace amounts of the toxin cause a tingling sensation on the tongue and lips when puffer fish is eaten.
Every year a small number of people eat puffer fish which has not been properly prepared and die by cardiac arrest as a result. There are also cases of people who are buried alive after going into a state of deep suspended coma, hence the Japanese practice of leaving those thought to have been killed by eating puffer fish next to their grave for three days before burial."