In some cases, an employee may refuse to obey an order he believes to be unreasonable, It could be for reasons that such order is hazardous or not within his job description, not related to official duties, or is a matter, personal in nature to the supervisor. A supervisor cannot just charge with insubordination without first checking on the conditions. Failure to do a job may be due to improper communication or misunderstanding. In giving orders, the supervisor should make it sure that employee fully understands the instructions