I bet if that dufus in the gif is alive that he changes his practice of tossing sh-t at random passerbys.
I got the impression(right or wrong who knows) that the girl knew exactly what was about to happen. Hence the apprehension and desire to stop it. Situations like that scare me a bit as I can relate to that bull mentality. Just seeing red, reason is out the window, and it's time to inflict some pain. Not a good thing, must be how men start wars and shit. Stupid.