Wasn’t there, can’t say, but they probably moved.
you are right. it´s difficult to tell what exactly happened if not an eyewitness, but it would be interessting how they moved. did they run away or did they just move their head in his dirrection? (which would be normal if someone shouts at you all at once). but at all i would not want to be his neighbor. that´s for shure!
excuse my english