Commence With An Apology
If you have to speak to someone in a position of authority, and you are afraid you might irritate him/her, starting with an apology will frequently prevent their becoming angry.
For example, you can say, "I realize this may get you angry, but I feel I need to say it." By telling someone you might make him angry, paradoxically this will frequently prevent his becoming angry.
enjoy this piece on the underground city of Derinkuyu
Love Yehuda
