I was at the local bagel shop one Saturday with my usual Torah study group. We met there on an off week (rabbi out of town) and were having a great discussion when a group of JWs walked in. They sat close to us and were being obvious about listening to our conversation. I made a completely "out there" statement that questioned God's existence (normal for me when I'm fiesty) and it started to get a little intense (we like it that way) and then settled down on the next verse.
One of the brothers had his bible out and finally got the courage to turn around and say something. (he had balls, I admit, we are a bit intimidating) He read out loud the way the NWT presented the particular verse we were discussing. One of our group held out his commentary and pointed to the Hebrew word in question and said "That is not a good interpretation, see the Hebrew word here is --- and not ---, so it shouldn't be translated that way." We all read our different commentary's translation of the word and proceeded to debate the word and its different uses and why his didn't fit. The guy kind of slunk back into his seat and turned around.
They left shortly afterward... I told the group afterward who they were; most of them had never heard of JWs.