Back in the 50s we lived in Panama City. One day a small clear spot appeared on the windshield of our car. After a few days it had spread enough to destroy the glass.
When it was replaced, Daddy noticed the insurance form said it was due to nuclear fallout.
I have no idea if it really was but I can’t see much else that could have caused it.
Well that just happens sometimes......:o)
And there’s probably an exclusion clause for nuclear fallout.