Actually, its not so invisible. This is what I found when I walked out to my car. The dew from the night before had formed on my car and I saw a handprint on the window of the passenger side front window. It made me kind of uneasy because I believe someone was trying to look into the car to see if there was something they could steal. Lucky for me, I didn't have anything so the person must have moved on, but they left their handprint.
