Sometimes if you ask the wrong questions you get the wrong answers.
I would encourage you to check out Charles James Hall’s multi-volume set (Millenial Hospitality) on his experiences in the Nevada desert. He claims that he had contact with “alien” creatures who have lived in the desert for hundreds of years.
Housemate read all Hall’s books and corresponded with him. He still doesn’t know what to make of Hall’s narratives. Plausible to a point. He was convinced that Hall certainly believed every word Hall wrote.
And he's the only one who's seen 'em, what a surprise. Even the conspiracy website that 'investigated' his claims and managed to talk to three of the other servicemen he mentions in the book don't verify his observations. Where they saw a wild horse out on the range, he saw four tall white aliens walking really close together.