Here is an exmple: my father in-law came here and he liked to co

We have all the non-sticky pots.

And he used steel brushes to clean them. My wife told him
that would destroy the pots.

He said, I was a senior engineer and knows this kind of things much better than you. It is not a problem.

My wife had a fight with him and he still did it. Of cause the pots are gone afterwards.