Presumably as Unite “peacefully” demonstrated at the homes of Grangemouth oil refinery managers, during last summer’s botched industrial dispute. It is a technique latterly championed by the union, known as “leveraging” (in fact, so excited is it by its novel idea that the union now has created a merged Organising and Leverage Department, to help promote it further).
The reality: when someone’s child dare not go outside to play, or has to ask its parents who the angry crowd of people shouting outside their garden gate are, or it is an unacceptable crossing of the line between legitimate and non-legitimate targets.
It is, needless to say, intimidation, by any other name. It is bullying.