"An ant went to a fountain to quench his thirst, and tumbling in, was almost drowned. But a dove that happened to be sitting on a neighboring tree, saw the ant's danger, and plucking off a leaf, let it drop into the water before him, and the ant mounting upon it, was presently wafted safe ashore. Just at that time, a fowler was spreading his net, and was in the act of snaring the dove, when the ant perceiving his intent, bit his heel. The start which the man gave made him drop his net; and the dove, aroused to a sense of danger, flew safe away." Aesop.

  I like these kind of stories, it is good to have a store of them when talking with children. They are eager to hear them, unlike most moralizing we do.