Actually, the time I got most upset was a few years ago when a slender (2-inch) package I was not expecting was hidden under the mat. Someone going along the street looking for a package would've found it. But when I came home, I came in thru the garage, missing it. Scott saw it when he got home. If I'd gone out the front door, I still wouldn't've seen it from that angle, and could've stepped on it. I was really ticked.