The old saying goes that when one door closes another opens. I have also found that some doors are never open and some are never closed. Some easily slam shut with the slightest draft. Some fall off their hinges for opened and closed too many times. Some are closed and nailed shut. Some doors hide skeletons in closets. Some flap in the wind. Some open for no reason at all. My favorite doors, those that open and the people that walk through them when you least expect it. But if all else fails, open a window, you can always jump out.