This one night at home, there was this weird whirring sound. So I looked out the window (and I'm mad groggy), and I see this hovering thing with a light beam and its REALLY far away. And I have very sensitive ears that hear very low frequency well, and I was picking up this weird noise. I got really freaked out because it wasn't a plane or anything I recognized. So I quickly went back to sleep and just swore to myself that it was me being tired.

edit: and it didnt look like a helicopter.