Cowards
There is a number of reported cases of a bunch of strikers which delights in making life uncomfortable for non-strikers. Usually this happens downroute though it can happen in CRC. Let's be quite clear that they are cowards, like the gang you might have encountered in your school days, which intimidates others - but only when they have numerical superiority.
I make no apology for using the word coward. They are a disgrace. Their behaviour must be reported on every occasion and, hopefully, some may get sacked.