title: Possible to stub method twice within a single test to return different results?
body: <p>I would like to re-stub <code>someHandler.getStatus</code>, but I'm getting <code>TypeError: Attempted to wrap getStatus which is already wrapped</code> ..</p>
  
  <pre><code>it('is a test', function() {
  
    sandbox.stub(someHandler, 'getStatus', function(callback) {
      callback(null, {
        value: 1
      });
    });
  
    sandbox.stub(someOtherHandler, 'doSomething', function(callback) {
      callback(null);
    });
  
    sandbox.stub(someHandler, 'getStatus', function(callback) {
      callback(null, {
        value: 0
      });
    });
  });
  </code></pre>