I just sent you a Private Message. To read it look for MESSAGES in tiny print at the top on the left of your screen.
You could invite him to a meal and when he pops the big question you can handle it like this:
Busybody Elder: "Do you still consider this Jehovah's organization?"
You: "Why did you ask that? You don't think I'm an apostate do you!?"
Busybody Elder: "Uh, ... I didn't say that. Don't get defensive!"
You: "Defensive! So that's how it is. I don't want to hear another word, please. Let's just keep it peaceful."
Busybody Elder: "Well, uh... duhhhhhhh."
That way he, not you, will be the one on trial. If he keeps trying to press you, just leave the room, shaking your head at him.