Author's Note: A fox invites the stork to eat with him and provides soup in a bowl, which the fox can lap up easily but which the stork cannot drink with its beak. The stork then invites the fox to a meal, which is served in a narrow-necked vessel, easy for the stork to access but impossible for the fox. The moral drawn is that the trickster must expect trickery in return and that the golden rule of conduct is to do to others what one would wish for oneself.
Sources