well, i'm pretty sure. i had gone to my mom's family's old plantation in alabama and when we came home (around 10 or so at night) we looked out over the mountain and there were 3 or 4 rotating disks in the distance that had random colorful light beams flashing. it was about 10 years ago, but the image is still burned in my mind.
I have possibly seen 2 UFOs (well... at least they were unidentified to me) One was when I was on a trip with my parents (my sister and I both saw this). I was riding in the car looking out the window and a strange shaped silverish object ... from the distance looked shaped sort of like a sideways tear drop, went past in the sky. My sister and I both thought it was kind of odd, then not to long after it was out of site about 3 military hellicopters went zooming in the same direction that the thing went >_> which was really odd. (Chasing something maybe?) The second one was at night, I was gazing up at the stars and I saw (I think it was blueish) light sort of slowly moving across the sky. My first thought was "ah, an airplane" ... until, rather abruptly, it shot off into the distance at an acute angle from the direction it had been moving >__> like it kicked into warp drive or something... SO yeah >_> those are my ufo experiences.
About UFO's: I saw some meteorites and a sattelite (the reddish star moving along the space). One of the meteorites came down a little and got fire, desappearing after that. Some people told it was a UFO but I saw clearly (even with the size of a fly): the light was from fire, not from a spaceship. I think there's aliens, but I'm not sure they have such intelligence or tech for that. By the way, I'm from Portugal, we here doesn't give much importance to it, but still there's some UFO files recorded here.
dude you should really make a few tutorials if you are bored or something like that, 'cause those lighting effects and shadow are epic and i speak for myself and hopefully others artists that i (we) could really use those kind of tutorials