At the Rumson country club, where we recently attended a wedding. It had just rained pretty hard and as you walked up the stairs to go into the wedding venue, the floor was made of a decking material. The decking had cupped, as they usually do, and the water was pooling in the cupped deck planks. This guy, probably one of the band members, walked outside to grab a smoke and I snapped this with my iPhone. Of course, it was upside down, so I flipped it both Horizontally and Vertically so he would be looking left-to-right and right side up.
Most people that see this have to look hard to figure out what it is at first