Handbags   (The sad, the bad and the ugly. Non-productive stuff here.)

From the male perspective, I think a more common similar example is one of the bloke who is, or would be master of his own home.

His word is sacrosanct, downtrodden wife/partner and kids who know no better.

They get a false sense of knowing knowledge , as nobody at home will argue.

Then when you meet them in the outside world, they spout drivel with great authority.