I too am one of those who's almost always surrounded by dubs and am i find myself constantly biting my lip. This place and the JW C and C board on Belief.net is threpeutic for me in that I get to vent when I want to, share an observation, and learn and practice different techniques of blowing JWs out the water whenever I do find myself involved in one of their narrow minded conversations.
I've learned enough about the JW borganization to throw out tidbits of information now and then in an effort to get my JW relatives to think for themselves for once in their lives. I think I've had some success with at least one of my bil although he still dodges any in depth analisys of JW history or doctrine with me.