Where does this endless snot reservoir reside within me?  Why does its hose only lead to my right nostril?  Is a clear left nostril an evolutionary trait?  Does the left nostril stay clear in case I have a career that relies on the ability to blow unobstructed air through at least one nostril?  I'm going to go fill a balloon to test this theory.  Hopefully, I use the right, I mean left, nostril.