I have seen them, starting when I was around 10.
Pretty sure I’ve never been “taken”.
I have been in extremely deep trance several times
and nothing like that ever surfaced.
This despite some “missing time” which evidently had more
to do with the Green Fairy in the Absinthe rather than
the Green Men in the Saucer.
I waved at whomever was piloting the black triangle that floated gracefully above my back yard.