I guess his children have a right to feel angry. Just imagine it - your own father teaches you one thing for all of your formative years. Since he was a missionary, he probably was strict about it. I have personally encountered pastors who forbade their children to read books, as all the books but the Bible were written by Satan, in their opinion. And there were lots of other restrictions. An enforced lifestyle, that probably influenced their adult lives. And then your Daddy just steps up, and says that he doesn't really believe all that he had taught you. What would you feel about it?