Since my ordination 17.5 years ago, I've made a real effort to hold to one axiom from the pulpit: never use my family - especially my wife - as a nice, convenient sermon illustration. First of all, I'm not convinced that the congregation needs or wants to hear about the pastor's family. Secondly, the pastor's family lives in enough of a "fish bowl" as it is. And, third, why humiliate my own family in any way shape or form? (After all, I only need to tell stories about myself and my own mishaps, and there's plenty of humiliation to go around! Nah, I don't even need to insert myself. :-)
Well, now I have a fourth reason not to tell stories about my wife in the pulpit: sheer and utter wife's revenge! Check out this funny video - "'Before He Speaks' Pastors' Wives Get Their Revenge" (You'll have to scroll down to find it, but it's worth the effort. ;-)
Message to pastors: Don't tell stories about your wives (or others in your family), and think before you speak!