The following video was posted on January 24, 2014 and shows “opposition” in action while storming the city council building in Vinnytsia, which is the capital of Vinnytsia Oblast, which is located in central-western Ukraine:
It’s clearly visible, that police forces are not the ones using force. In fact I have seen more aggressive police action against more peaceful demonstrators in Western countries like Spain and Switzerland:
I also recall the anti-globalisation demonstration in Genoa, Italy in 2001, where Carlo Giuliani was shot by police for doing less than this guys did. Police in Italy had nothing to fear, as it was judged that the acted in self-defense.