justtickled pink, after that embarrasing 'truth' encounter with my friend I did the same thing. Made a point to systematically eliminate all dubspeak from my vocabulary unless it was used to describe an activity or item that was pretty much unique to them. Even then you have to be careful.
Another incident that sticks out in my mind was the time I was supposed to sing in a Christmas concert with my highschool choir. I had recently left the JW's and run away from home to live with my recently faded dad and it so happened that the concert fell on one of my mom's visitation weekends. Even though I didn't have any qualms about doing a christmas concert I knew that the very idea of it would REALLY hurt my mother so I decided to opt out. When my teacher asked why I calmly explained that my mom was really worried that I was going to die in Armageddon for doing the concert especially since almost every song was about Jesus (yes, I realise the irony). She just gave me this look like snakes had crawled out of my eyes.
Taylor S, I understand what you're saying about the 'field service'. My wife is black too and had similar qualms about the terms "Cicuit Overseer, Presiding Overseer, and Ministerial Servant." What's really strange is that recently the JW's have made such a hard push for black converts yet they haven't thought to change these terms. Then again, no one has every accused them of being sensitive or cutting edge.