Small slights at work – intended or perceived – can lead to resentment, distrust, and even a complete breakdown in office relationships. It may be your boss, a subordinate or just that guy who sits in the next cubicle, but when any of these relationships sour, they can drag down your own happiness and productivity. Brian Uzzi, a professor at Northwestern's Kellogg School of Management and author of the Harvard Business Review article, "Make Your Enemies Your Allies," has developed an approach to fixing work relationships that have gone bad. He calls it the 3Rs.