Promises, Promises

I just read a comment by Uncle Dan that reminded me of a family story.
Uncle Dan said "I am always leery of anyone who promises the moon."

One day I heard one of my brothers trying to bribe his younger daughter to do something, He promised one thing after another. I did not say anything, but became increasingly annoyed. Finally I had had enough and blurted out "Well, why don't you just promise her the moon and be done with it!"

He never missed a beat. He smiled at me sweetly and confessed, "I can't do that. I have already promised it to her sister."