So basically I have a hierarchy with a navigation controller inside of a navigation controller. I'm trying to use popViewControllerAnimated to notify the top NavigationController to close the bottom so I created a dummary base ViewController that sits at the bottom of the stack and I monitor popViewControllerAnimated: and send a notification up if I am popping to the last one on the stack. The problem is, is that if I am in a higher level VC in my second-Navigation controller and hit the back button really fast then popViewControllerAnimated will only get called a single time and skips one. Is there a more reliable way to monitor the navigationBar from within a subclass of the UINavigationController?