"I appreciate your concern, but there's nothing private & personal I wish to discuss with anyone at the moment. Thanks anyway."
We have stuck with this line and it works. It can be hard not to let everything you feel come out of your mouth like a waterfall. By making a statement like this, you do not feed the JW gossiper or the Elder that is trying to hang you from the highest tree. Not giving a JW info they so desperately want is like letting the air out of a balloon. If you are dealing with a bully Elder, it can actually be fun watching the air being let out of his balloon. They want the info so bad but you are taking control and not allowing it. So fun!!!