Some things are better left unsaid in the case of your boss that stands true.
There are five things that you should avoid talking about with your manager at all costs.
Firstly, an individual should never reveal their side business or a hobby through which they are making profit to their to their boss, the Muse reported.
Secondly, a person should never tell their superiors that they are exhausted after studying late night.
Thirdly, if a person needs a sick day they should feel free to share, if it's something minor or serious, but should leave out things that will conjure unpleasant things in the mind of their boss.
Fourthly, they should never reveal how badly they have messed up in their job.
Lastly, a boss should never be told by his employee, the actual reason as to why they left their previous job.