title: Prevent dismissing modal WKInterfaceController
body: <p>Is there a way to prevent the user from dismissing a modal controller?</p>
  
  <p>I think it is pretty common to want to "block" the main Watch App interface while asking the user to open the iPhone counterpart or to perform some action there.</p>
  
  <p>My current solution is to present again the controller when it gets dismissed but its clunky.</p>