The Boy Who Cried Wolf

The Boy Who Cried Wolf was a Human fable about a young shepherd who enjoyed tricking the people of his village into believing that his sheep herd was being attacked by a wolf. When a real wolf appeared one day the boy called for help, but none of the villagers believed him. The wolf ate the boy and his sheep.

Q tried to ridicule Worf in 2366 by comparing his concern that he may not be trustworthy to "the story of 'The Boy Who Cried Worf". 

Julian Bashir told Elim Garak the fable in 2371. While Bashir believed the moral to be that lying too much will cause people to never believe a person, Garak believed the moral was to not tell the same lie twice. In addition, he found the story to be incredibly dark for children.