Dealing with difficult people is not an option; it’s a human dynamic we all face, sometimes daily. There are different levels and types of difficult people. In this series, I would like to identify a specific type and how I try to deal with them in a professional environment. Anyone who works in any type of service industry must learn how to manage people well in order to survive, especially dealing with the know-it-all client. You know the type: they know more than anyone in the room, no matter the subject. They always, and I mean always, have an opinion about everything…sometimes even more than one opinion on any given subject. And now it’s your job to manage this person and get your project done to his or her standards. When the know-it-all client starts to pontificate on matters that you are suppose to lead and begins to tell you…