That which is described sarcastically as "some paperwork" is a small replica of the Israeli flag. It is being held aloft by an elderly gentleman in a blue baseball cap. As a tall and much fitter young bloke in a black cap passes this elderly gentleman - who is quite possibly one of the Holocaust survivors who (with their descendents) comprise the bulk of the "Shtetl by the Yarra" (as Melbourne Jewry is often dubbed) - he shows his visceral hatred of the blue and white flag (symbol of the national liberation movement of the Jewish People and of the Jewish State) by tearing it from the obviously much smaller and frailer elderly man's grasp leaving him somewhat shaken.
Shame on the antisemitic thug. Shame on the movement he represents.