An old lady and a young man pass each other in the street, wearing exactly the same pale blue, beige and dark blue checked coat. The old lady is pointing to the young man and grinning.
All this photo would take is either a friend hanging back and snapping a pic with their phone, or a random person walking behind who thought it was funny taking a photo, the coats are noticeable enough that someone could have seen it coming far enough ahead of time to get their phone ready for the photo