I saw a poll on this question on netscape.net about a year ago, and couldn't believe it was 51-49% no, with something like 100,000 votes.
I've heard the stories, seen pictures, and have known people that have had "encounters", but I'm still very, very skeptical.
I guess my answer would be the same as how I respond to religious posts.... I don't believe in it, because I have no reason to. I'm sure if I had a first-hand encounter with one, and I hadn't been drinking that night, then I'd believe
