No matter what any of the grammar teachers say, punctuation is an arbitrary matter. It should be used to make sentences clear.
Andy RooneyThe closing of a door can bring blessed privacy and comfort - the opening, terror. Conversely, the closing of a door can be a sad and final thing - the opening a wonderfully joyous moment.
Andy RooneyThe two biggest sellers in any bookstore are the cookbooks and the diet books. The cookbooks tell you how to prepare the food, and the diet books tell you how not to eat any of it!
Andy Rooney