I voted 'highly skeptical, but possible'. I haven't seen a report I could believe yet, but I am open to the possibility. I have seen things that for a nanosecond I thought "What the heck is that?", but I always realise, "Oh, it is a helicopter with the sun shining on it", or "It's the street lights reflecting off the windows". I think most of the people who see UFOs are seeing the same things I see, but they never go beyond the "What the heck is that?" first response.