Sure. There's an escalation process in this; going round to ask people not to do something. But if that doesn't work? Or results in aggression? Or actual violence? Or, because of the character of the neigbourhood and people's fears, they worry it might? People turn to the police to mediate their disputes.

And the problem with AirBnb is that every new set of guests re-rolls the dice on how they're likely to react.