Although watching scenes like this soothes the heart I think it will be better if Iranians make sure skirmish like this will not happen or do their best to minimize it.
We should abandon hate or revenge and seriously think about building bridges. Whether we like it or not there are millions of regime supporters (excluding sandis khors though) whom we will have to live with, you can exile or kill them all.
We should not let 1979 to happen all over again when many many mobs got together, attacked people houses and dragged innocents people out of their houses, labeled them savaki, shahi or jasoos, put against the wall and shot at point blank with total impunity from newly established revolutionary forces (later called barbaric republic), all b/c of some personal vendetta, envy or just simple hearsay. Individuals were issuing death decree at will. It was "UGLY".
BTW: I don't mean issuing free pass to murderers, Justice involving due process should be carried out and those who have blood in their hands should face the consequences of their crimes.