In one management seminar that I attended that focused on rivalry and professional jealousy I realized that there are confidential matters that should remain confidential. First is the salary which is always the crux of jealousy in the workplace. If you know my salary and it is higher than yours then you will be sad and on the other hand if my salary is lower than your salary then you may become overconfident. Another confidential matter is the relationship with the boss. If an employee is related to a boss then it should be kept secret so as not to intimidate the other employees. Do you know of an item that should be kept confidential?