A day in the life of a business person can be filled with joy and satisfaction or it can be frustrating and stressful. When things go wrong, some people lose control. Holding emotions in check and reacting professionally under fire is not always easy. It is particularly difficult to be nice to people who are not being nice to you.So what do you do to keep your cool when the customer is chewing you out? Most of the time, it is not even your fault. It could be that the problem was with a product or a service delivered by someone else in your organization. You’re getting the blame because the unhappy person found you first, and it’s not pleasant. When faced with angry people, there are four key steps that will help diffuse the situation.