Related:

• When one door closes, fortune will usually open another. -- Fernando de Roja
• Q: What do you get when you cross a Jehovah's Witness and an atheist?
  A: Someone who knocks on your door for no reason whatsoever....
• Remember when 'safe sex' was making sure the door was locked?
• The door is already open!
• Fortune leaves always some door open to come at a remedy.
  -- Miguel de Cervantes (1547-1616) -- Don Quixote, Part i, Book iii, Chap. i...
• The door is extremely rusty and refuses to open.
• When one door closes another door opens; but we often look so long and so regretfully upon the closed door, that we do not see the ones which open for us.
  -- Alexander Graham Bell...
• Are you sure the back door is locked?
• Fortune knocks but once, but misfortune has much more patience. -- Dr. Laurence J. Pete