We shared a weird moment as you were getting off the train. You made eye contact, smiled, and - to my absolute bewilderment - waved hello. I've been scratching my head ever since, wondering if that was a romantic attraction thing, or simple a case of mistaken identity. You: in black, bent the laws of physics with the huge violin-like instrument on your back (it's actually bigger than you are). Me: asian, thick framed glasses, dumbfounded jerk who was (kind of) in the way of the train doors.