Image Source: Wikipedia I've been working professionally for more than twenty years already and I am thankful that my current and as well as my previous employers entrusted me management positions that are relevant to their organization. These positions that I held and the one that I am currently holding were able to enhance my character as a manager. One of the most challenging task a manager usually carry is supervision of their subordinates. Sometimes, it is not enough that a manager has an exceptional technical know-how on his particular field or if he is a graduate from Harvard University. So long as a manager has the skill to manage people, he will do wonders. Unfortunately, managing subordinates with different sorts of personalities can be very stressful and sometimes very damaging to the emotional health of the manager. Based on my experience, there are certain type of employees who are unhealthy to work with and generally do not provide any signi...