The very first thing that comes to mind after reading "Sure Thing" is just a blank, what in the world just happened.. kind of feeling. I've concluded that the bell indicates a change of scene or at least a changing point in the conversation if nothing else. But what is this play about? What is the purpose of showing how many different ways one conversation could go? Or is the purpose just that? To show how one single conversation has so many different potential outcomes and that you never know if you don't try?