Love your idea of having printouts of the recent child molestation cases on hand. Maybe have a folder in the car or in a drawer by the front door.
I truly think it's easy to dismiss "apostates" when they come at you yelling and screaming scriptures at you. But if you appeal to them with concern for their children/grandchildren and show them with news reports/court documents you just might get to them.
I know in my case what happened to my family really disturbed many and I've heard some have left because of it. Child molestation is something most humans find unforgivable, I really think more and more JW's are finding out about what's happening within their religion, I'm hoping their conscience will kick in with a little help from all all of us.