UFO Sightings: Amazing or Terrifying?

I have a new blog post at UFO Magazine - UFO Sightings: Amazing or Terrifying?.  Have you had a sighting and were you amazed or terrified?  I would like to know, but please skip alien abduction responses.  Nothing against that, but it is not what I am curious about right now -- I am only interested in what you felt about seeing something unidentified in the sky.