I noticed that in retrospect. I thought afterward of the example of sea monster stories being mostly bogus, but the giant squid ones being true (albeit probably exaterated). But your rocks from the sky example works.
...and there is no compelling evidence that supports the idea of aliens visiting Earth in spaceships.
Don't tell Art Bell, but I agree there is no compelling collective evidence of this (i.e. verifiable to the public at large). However I do allow that there might be some private experience some individuals have that constitutes compelling personal evidence.
[However I do allow that there might be some private experience some individuals have that constitutes compelling personal evidence.]
I confess that I'd pay good money to see some of it. :^)