My first thoughts were the same as suzieq's. Sounds more like someone is trying to find him......and not likely for good or legitimate reasons. Whoever he pissed off has found you, and my advice to you right now is to be very concious of your own safety and surroundings. I don't know a lot about these people, but I know enough to know that they are ruthless and vindictive. Maybe consider changing your number or alerting your local police department. Talk to your son and see if he knows who might be looking for him. PLEASE BE CAREFUL!!