Life is so Vunerable.

Yesterday, when I was on my way home on the train. On Ang Mo Kio station, saw a man board a train with helped of another man. That man look kinda old and not feeling really well(he looks like he suffered from stroke before, noticed it because of his finger), after he board the train he fainted. So other ppl gave up their sits. (only after that old man FAINTED) Another guy who saw this helpless man came to help and hold him up to the seat(thank you, Mr nice guy=] ) But before he could sit, he feel on the floor and started vomitting.
I am VERY sorry that I left the cabin, I felt that it was very rude of me to leave the cabin after seeing this. I wasn't feeling very well too. So when i saw that old man puke, I almost did immediately. I have been feeling nausious for a few weeks already, without any reasons.
I just hope that old man recovers soon.