Breach of duty,

Definition of Breach of duty:

1. Failure to satisfy ethical, legal, or moral obligations, specially where someone has a corresponding right to demand the satisfaction.

How to use Breach of duty in a sentence?

1. You must make sure to never have a breach of duty so that you do not damage your businesses reputation.
2. I was fired for a breach of duty and I appealed it because I did my job really good and was a great employee.
3. You should never try to be accused of a breach of duty or your reputation may be damaged for good.