Never Tell the Same Lie Twice

Dr. Bashir tells Garak the story of "The Boy Who Cried Wolf," telling him that the moral of the story is that if you keep lying eventually nobody will believe you even when you're telling the truth. Garak ask if he's really sure if that's the lesson and Dr. Bashir asks what else it could possibly be. "That you should never tell the same lie twice," Garak tells him and walks off, leaving him shaking his head.

Example of:
Alternate Aesop Interpretation