Idiom of the day :- On a fool’s errand
Usage, examples and definition of the Idiom :-
To go on a fool’s errand is to go on a useless or unnecessary trip. Sidney, for example, has been told to deliver a package to someone living in the middle of the desert. ‘There’s no one here,’ Sidney frowned. ‘I think I’ve been sent on a fool’s errand.’ I suspect Sidney is right.