Sometimes you need to make sure init and deinit happen in the right order on your View Controllers, and you don't stand up two at once.

logVCinitAndDeinit.swift

  override init(nibName nibNameOrNil: String?, bundle nibBundleOrNil: NSBundle?) {
    super.init(nibName: nibNameOrNil, bundle: nibBundleOrNil)
    print("init nibName: \(self) \(unsafeAddressOf(self))")
  }
  required init?(coder aDecoder: NSCoder) {
    super.init(coder: aDecoder)
    print("init coder: \(self) \(unsafeAddressOf(self))")
  }
  deinit {
    print("deinit coder: \(self) \(unsafeAddressOf(self))")
  }