I am looking for your best JW comeback- the kind that makes a JW's jaw drop. Ok, even two pithy sentences will do.
Here's one I have used before on JWs,
moshe: " do you know what an oxymoron is?" (JW gives an answer) moshe: "well, the #1 oxymoron is called, "Jehovahs Witness Truth"" - quickly end the discussion and leave the JW with that thought.