title: Observing Task exceptions within a ContinueWith
body: <p>There are various ways in which to observe exceptions thrown within tasks.  One of them is in a ContinueWith with OnlyOnFaulted:</p>
  
  <pre><code>var task = Task.Factory.StartNew(() =&gt;
  {
      // Throws an exception 
      // (possibly from within another task spawned from within this task)
  });
  
  var failureTask = task.ContinueWith((t) =&gt;
  {
      // Flatten and loop (since there could have been multiple tasks)
      foreach (var ex in t.Exception.Flatten().InnerExceptions)
          Console.WriteLine(ex.Message);
  }, TaskContinuationOptions.OnlyOnFaulted);
  </code></pre>
  
  <p>My question:  Do the exceptions become automatically observed once failureTask begins or do they only become observed once I 'touch' ex.Message?</p>