Have you ever had a stalker? How about one that is so good that he makes you think that you are stalking him? I know it sounds ridiculous, but these people are crafty, and yes it has happened to my sister. After moving into a brand new building, it had very few occupants, therefore it is a little weird how often you run into the same person. So often that it can't be coincidence... and yet every time this person appears he does not respond to your greetings, presence or actions.... just acts like you are not there and that it is your fault he is standing next to you. So the first time this guy appeared was in the elevator, my sister tries to be normal and gives a smile and a nod but no response, okay just carry on. The next time was in the corridor, and she realizes he lives on the same floor, so when they pass in the hall she says "hello"- again no response. I told her that maybe he was deaf or didn't speak English, but the next time she waved since he was li...