“The Inquisition thought they had the truth! Clearly this ‘truth’ business is dangerous.”
The Inquisition was not that unusual. Religious and political loyalties tended to be quite entwined, so most states discriminated against believers in the wrong religion, sometimes banning such religions entirely. This naturally led to people carrying on the old (or new) beliefs in secret.
So the Inquisition was empowered to go looking for those secret heretics.
There were large, bloody and religiously inspired wars in Britain, France and Germany, to name but three.
There were none in Spain or Portugal, so perhaps the Inquisition did more good than you think.
Well, fine, but I bet it’s still true.
I bet your mother was older than you and had therefore had more time to learn not to do daft things such as keep re-searching the refrigerator from exactly the same angle.
But there is no such thing as a theory of age related psychology* to bring that explanation to mind, and would not have been a very flattering theory to come up with.
*Perhaps there should be.