text: Both Spanish (sacamantecas) and Peruvian (pishtaco) folklore contain examples of monsters or criminals who murder human victims for their fat.
  Manuel Blanco Romasanta (1809–1863), the first serial killer documented in Spain, was accused of extracting fat from his victims to sell in Portugal, exchanging an ounce of fat for an ounce of gold.
  This folk belief survives to the modern day. In Latin American urban legends, it is claimed that human fat is used to grease bells for better sound, or applied to modern machinery such as railways or airplanes.