title: How to make a button do the same thing on every screen in iOS?
body: <p>I have a "Log Out" button in the toolbar (made through the storyboard) of every screen of my app. I would like it to perform the same action no matter which page is showing when it is tapped.  </p>
  
  <p>Is there a way to have all these buttons do the same thing without having to create the same <code>IBAction</code> method in every view controller (I have a bunch of different types of view controllers)?</p>