The god Prometheus stole fire from heaven to give to the human race, which originally consisted only of men. To punish humanity, the other gods created the first woman, the beautiful Pandora. As a gift, Zeus gave her a box, which she was told never to open. However, as soon as he was out of sight she took off the lid, and out swarmed all the troubles of the world, never to be recaptured. Only Hope was left in the box, stuck under the lid. Anything that looks ordinary but may produce unpredictable harmful results can thus be called a Pandora's box.