When you've been loyal to a company for a while, it may seem like a betrayal to put in your two week notice. Even though you're following standard resignation protocol, priceless employees are impossible to replace– thus, throwing your ex-boss into a lurch. You may feel a sting of regret for a moment when you break the news, but if your boss throws an all out tantrum against you for making choices that improve your personal life, it makes it a heckuvalot easier to walk away.