Familiars

So you see someone around. Periodically seeing them on the last part of the daily epic commute. Only noticing them as you familiarise yourself with the surroundings. And then after two years, when your routine has settled down you start to see them more frequently and realise they are weird. Someone who was once just another smart office worker on their way to work suddenly becomes a neurotic who stands up against the doors whispering harshly into a mobile phone, who won't get on the train until its just about to leave.