"Don't let the door..."

  "Those who can laugh at themselves will never cease to be amused."

    Today, as I was walking out of a store, the door actually DID hit me on my way out.  I caught myself, then stopped to think, "Hey, that door just hit me... on my way out."  Then I laughed a bit.
  This is possible because many of the doors here in Korea are on hinges that swing both ways.
  I do like to sit and watch people at a coffee shop sometimes.  The door says "pull", but many disregard this.  I've noticed that most Koreans will push the door away from them; but most foreigners (myself included) pull the door towards us.  I do this to prevent pushing the door into other people, especially if I can't see through the door or if those on the other side might be shorter than the window.
  I don't know if this is a cultural, height/body size, or other issue; but it is interesting to observe.
  Just remember, when something happens like this and the door hits you - you can get grumpy, or you can just laugh at it/yourself. 
    Choose laughter.