Alzinho,
So sorry to hear of your misfortune! Double sorry to read the personal attacks against you on this forum. Getting robbed sucks, and I never understand the "blame the victim" crap that many people spew. It certainly is a different type of mentality than I'm used to!
I was thankfully not robbed on the subte today at 4:30pm (Linea D, 9 de Julio), but I was standing next to a normal, not flashing looking, non jewelry wearing, 40ish Argentine woman as she was robbed on the full train. She realized immediately what had happened, and started yelling - and the policia actually got the guy. It helped that the thief was not terribly subtle while he was grabbing at her wallet in her bag. And the thief appeared to be 55+years old, white hair, and well dressed. He could have been my father. He was spotted by others on the train, and many people started yelling for the police, and thus, the thief was foiled. The woman was shaken, and very displeased by the attempt.
My two cents - I'm a native NYer, and in more than 30+ years (and I lived through the ugly 80s! in Manhattan!), I have never been mugged, robbed, attacked, the victim of a crime in NYC ever. Wish I could say the same for my less than 1 full year here.