Rabbi Epstein is a Joke
Rabbi Epstein, who shall we say was "humor impaired," attended a conference to help him improve his public speaking skills. Among the speakers were many well known and dynamic speakers.
One such speaker boldly approached the podium and, gathering the entire crowd's attention, said, "The best years of my life were spent in the arms of a woman that wasn't my wife!" The crowd was shocked! He followed up by saying, "And that woman was my mother!" - The crowd burst into laughter and delivered the rest of his talk, which went over quite well.
The next week, the rabbi decided he'd give this humor thing a try, and use that joke in his sermon. As he surely approached the bimah that shabbat, he tried to rehearse the joke in his head. It suddenly seemed a bit foggy to him.
Getting to bimah he said loudly, "The greatest years of my life were spent in the arms of another woman that was not my wife!" The congregation inhaled half the air in the room. After standing there for almost 10 seconds in the stunned silence, trying to recall the second half of the joke, Rabbi Epstein finally blurted out, "...and I can't remember who she was!"