It was around 7.30pm at a relatively quiet suburban train station and my overriding feeling was that even though I wanted to intervene, to say something, a larger portion of my brain was telling me that if were to step in, I’d be putting myself in immediate danger. Quite simply, my good samaritan instincts were being overridden by a fear that this guy, considerably bigger than me, was in just the sort of agitated state to make him inclined to knock me out with a swift blow.