They'll rub you all right. I actually (no kidding) knew a work friend that fell for this gimmic. He used to surf the web at night (porn most likely), and found this so called "girl from Russia" that wanted to get to the states to visit her dad. He talked to her on and off for three weeks, and finally sent her money so she could obtain "her visa". She needed more money; he sent it. Finally he cut "her" off after 2 grand! We at work told him he was most likely sending money to some guy named bruno.
So yea, he got his feet rubbed alright. Dumb arse.
It is better to keep your mouth closed and let people think you are a fool than to open it and remove all doubt.