Stuart Scott, Microsoft's former CIO, is not the only Microsoft employee unceremoniously being shown the door. Some staffers who are putting in their notice are being escorted off campus immediately. Why? Because they've put in their notice to join Google. In Microsoft's eyes, Google is Enemy No. 1. Anyone leaving Redmond for the search leader is a threat. Not because they'll scurry around collecting company secrets — as if Google's interested in Microsoft's '90s-era technologies. Departing employees, however, might tell other 'Softies how much better Google is. If an employee is leaving for Amazon.com or another second-tier employer whichdoesn't make Microsoft so paranoid, they'll probably serve out the traditional two weeks of unproductive wrapping up. So if you're planning on leaving Microsoft for Google, pack up your belongings and say goodbye to friends ahead of time. There'll be no cake and two weeks of paid slacking for you. And, Microsoft, don't expect former employees who are treated like security threats to ever want to come back, even after their Google stock options have vested.