The third story window

I was walking down the street one day, when suddenly I was struck by a bright red substance. I looked up and saw a man in a window about three stories up. The really wierd thing was I seemed to be able to see right through him, like he was invisable or some thing. So I yelled at the man, 'Hey, watch it, buddy, there's people walking down here.' Suddenly, the man disappeared. I know he didn't just go back inside because I was watching him the whole time. He was there one minute, and just gone the next. I went into the building to see if I could figure out what happened, but the entire building was abandoned. I went to the window where I saw the man, and there wasn't anything in it. On my way out of the room, I noticed that the floor was very dusty and dirty, and when I came in I had left footprint. So I looked around to see if the man had left any. Suddenly, I noticed footprints just appearing on the other side of the room. I freaked out and ran out of there. Of course, no one believed me, but at least now I have a cool story to tell around campfires.

not a whole lot, it just freaked me out