There was a fellow I was acquainted with whose business was installing glass panels into windows for businesses and the local schools systems. More that once I heard him lecture his helpers and apprentices that "If you drop a piece of glass, let it fall. It's easier to replace the glass than it is your fingers."

I have since found this to be useful advice.

I have also found that not everyone has the sense to put the facts together until someone actually 'speaks the words" to them.

It's like, "Oh... Yeaaah..."