Pat-a-cake

Two men stand facing each other on a city sidewalk in front of a glass building, clapping their hands together in a rhythmic, synchronized motion. The man on the left, wearing a camouflage jacket, smiles and continues the clapping until the man on the right, in a dark hooded coat, suddenly breaks the rhythm by punching him in the face, causing the man in the camouflage jacket to recoil.