This happened about 2007 in the summer. I am 54 years old and live in a very small town in southeastern Washington. I worked for our local small town hospital cleaning the doctors' offices and local clinic after hours, usually around midnight to 5 a.m.
This was about 2 or 3 in the morning and the night was clear and warm. I was standing outside in front of one of the offices having a smoke. I was turned toward the parking lot with the building about 30 feet away and to my right. I was looking up at the sky when suddenly movement to my right caught my eye. I quickly turned my head and caught sight of something dark -- very dark, like a shadow -- on the roof. It moved quickly behind the dormer. It moved so fast that all I saw was the back end of it. Its head had already gone behind the high dormer that was on the roof over the entryway. It was about the size of a man, but it seemed to move like a hyena, with rounded haunches, and if it had a tail, it was tucked between its legs.
I wasn't scared, really, but I went inside nonetheless. A few weeks later, I was sitting in my truck at the same set of offices taking a break. Across the parking lot straight ahead of me I saw movement. This thing ran like a shadow under the light, moving from one building to the next, moving against the walls of the buildings. I don't know what I saw those two times, but I will tell you this: I saw something and I don't believe it was human. It was some sort of animal, but I got the impression it was intelligent. The older I get, the more I have come to realize just how much we don't know about the world we live in.

