Yep should press the emergency button and call the police at the same time as he has been a nuisance and had made a death threat.
Sinkies should take matters into their own hands instead of just blaming the garment. How many Sinkies were there in the train at that time? All act blur, walk away or take video and only one old man dare to speak against the bully. I've seen tons of such Ah Tiongs in China who only know how to talk loud. If every Sinkie there were to speak up against him, he will be out by the next station. Shame on these Sinkies!
Agreed. Remember this during the SMRT train breakdown.