Strange Silhouette in the Kitchen

This actually happened yesterday morning. I was up bright and early yesterday morning (5:45am to be exact) so I could get a head start on spreading mulch in our gardens. I had to go in the garage to get a pair of gloves lying on top of a box that was resting on the top of a railing leading to stairs. Now the door to the garage leads right into the kitchen, and there's a window in that door, so you can get a pretty good view inside from where I was standing. I just happened to look at the window and saw what looked like a silhouette just standing there, doing absolutely nothing -just standing there, the front facing the front of the door. I wasn't exactly scared at first, but after looking at it for some time, it began to freak me out a little. I went back outside to keep working, but I came back later that day and saw it again! I shut my eyes and opened them again. The figure was standing exactly the same spot it was standing earlier, just like before, not doing anything -just standing there, looking towards the window. I got pretty scared that time. I'm not exactly sure what happened, just saying what I saw.