The Farmer and the Frozen Viper

A farmer picked up a viper that was half-dead from the cold. When the farmer had warmed the viper, the viper uncoiled and grabbed hold of the man's hand and with a fatal bite, he killed the man who had wanted to save him. As he was dying, the man spoke some words that are well worth remembering: 'Well, I got what I deserve for having shown kindness to a scoundrel!'