gistfile1.js

function foo(id) {

  var deferred = q.defer();

  bar(id)
    .then(function(obj) {
      var anotherDeferred = q.defer();
      
      log('fail');

      if (obj) {
        deferred.reject(new Error('no obj'));
        anotherDeferred.reject(new Error('no obj'));
        return anotherDeferred.promise;
      }
      
      anotherDeferred.resolve();
      return anotherDeferred.promise;
    })
    .then(function() {
      log('we got here anyway');
    })
    .reject(function(error) {
      log(error);
      deferred.reject(error);
    });

  return deferred;
}