Dealing with extremely difficult clients is part of doing business. However in some cases terminating relationships with these clients can be the best decision in the long-run. So-called ?nightmare? clienbs can lower employee morale and be impossible to work with. A company that decides to fire a client must due so in a delicate manner to avoid negative publicity.
See "`Nightmare' customers can often be worth firing", Joyce M. Rosenberg, Chicago Tribune, June 20, 2004