If an employer decides to terminate an employee, he is required by law to grant the employee a hearing prior to terminating the employee.
While this may not change the employer's mind about the termination, it does clear the air by allowing both sides to express themselves and lay everything on the table.

Employers in the public sector and large companies usually do this as standard procedure, while many private sector and small employers tend to ignore this basic issue which gives respect to employees as people.