Eryn,
In the UK the "catch-all" is "Behaviour likely to cause a breach of the peace". Essentially it give the police the power to nip a disturbance / incident in the bud by arresting and removing whoever they believe is provoking the disturbance / incident. It's not unknown for the police to arrest (and quietly release) the 'victim' simply to defuse a situation. Used properly, discretion can be a very good thing!
