江崎グリコ
The Monster with 21 Faces sent its first letter on May 10 to the giant food company Ezaki Glico following the kidnapping and escape of Katsuhisa Ezaki, president of Glico. The letter stated it had laced $21 million worth of the company's confections with potassium cyanide soda, and it later threatened to put them on store shelves. None of these poisoned candies were found, but Glico products were removed from stores, resulting in a loss of more than $20 million and the laying off of 450 part-time workers. By the end of the whole ordeal, Glico reported a total decrease in sales of nearly $130 million.