These two cats were sitting tensely on their haunches in the middle of the sidewalk. They didn’t even scatter as I approached. They were transfixed on a location in the distance, but to the human eye there was nothing in that direction. A wall of a building was thirty feet in front of them. Whatever they saw clearly disturbed them as they rose to their feet in a defensive stance and retreated back down to a sitting position several times. Hopefully whatever it was didn’t see me walking by after I took this picture.