When I’ve been watching this movie for a first time I’ve been expecting that sequence would end up with a fight, but it wouldn’t. When I’ve been watching this movie for a second, third and tenth times, I’ve been mistaken over and over every time I've been watching that scene.
It is obvious that guy’s presence in the scene is not for nothing, that guy have been written in the screenplay, his presence makes some sense. But what? And then, during another viewing (to tell the truth I’m not certain of the number in succession) it has just dawned upon me. I got the essence of the scene. And now please let me explain what has actually happen in that shot.