This sort of shit makes me so mad I can hardly think straight. Chasing down a 42 year old who they haven't seen in 17 years to blackmail and threaten them over a decision they made, under pressure, as a 13 year old. Gotta love the Watchtower. If there is a firey hell, it must be for people like this.
If you have been reading a lot of the posts here, you may have seen this post by Amazing about passive resistance -
http://www.jehovahs-witness.com/forum/thread.aspx?id=36328&site=3
Unfortunately, they may just go ahead and announce you as being disassociated. This is becoming more common, from what I understand.