The Rabbis of the Talmud were troubled by the evil and cruelty they saw in the world. So they tracked down the Evil Inclination, and locked it in a cage. And the world was peaceful for a while.
After a few months, people started to come to the Rabbis with complaints. Hens had stopped laying eggs. No children were being conceived. No new houses were built. No new fields were planted. So the Rabbis opened the cage, blinded the Evil Inclination in one eye, and let it free.