In reply to tehmarks:
Personally I am very happy to live in a country that is pretty good at non violent protests.
In this particular case if remain got violent and brexit was dropped then it would open the door for leave to become violent.
The violence in Chilly is against the state for increasing fares, the violence in France was against the state over fuel duty increases.
Brexit isn't against the state, its half the population against half the population with a bunch of total incompetents at the top trying to do the best they can / line their own pockets (depending on your view point)
If violence kicks off it will be more akin to civil war than a protest.