"Ladies and gentlemen, I welcome all of you here, but I want to ask who lost a bunch of rubber bands with money?" The audience looked at each other and Dr. Otto shrugged his shoulders. "We are sorry to find the rubber band."
Everyone was amused by Dr. Otto’s cold humor and laughed in good faith. This is a small way for Dr. Otto to relax himself. It seems that the effect is good. He also smiled and said, "Thank you for your