Most sci-fi movies have aliens coming to harvest us humans, but seriously, do you think they would travel across the universe for a snack?
Or do you think they check in on us occasionally like some cosmic bookie who's placed bets on when we'll blow ourselves up?
Maybe you think they're waiting for us to mature a bit before we're taken into the "federation" and get to hang out with them?
Those are the usual theories you see in movies. The UFO sitings reported on the "news" don't usually sound so warm and fuzzy: cow mutilations, abductions, probes, etc.
So what do you think? Are there really UFOs out there? And if so, for what purpose? Or what are they really? This thread is open for any and all theories OR personal experiences if you dare!