Well, from all the bad eggs, there will be good eggs. I may have been fortunate, but from the about.. 100? times I used the DF, I've been on ONE bad party, to which I reported for harassment because of his use of bad words. The rest are all very friendly and helpful. Make sure you greet when you start, and thank everyone when you finish. Ask if there's anyone new and need to be briefed, ask if there's anyone japanese or english and to use the auto translate if possible. I think even by doing that you encourage people to do the same.