There are many situations that demand firing of employees at the workplace. In some cases the employee is at fault and in others he is not. In either of the cases it would be prudent to expel the employee with respect and kindness while at the same time being firm and strict. This will enhance your image as a good employer.
When the employment is being terminated because of an illegal offence on the part of the employee-for instance stealing of secret and confidential company data, the termination should be done as quickly as possible to protect the interests of the company. The employee should be informed that the reason for expungement and the employer should give him a notice of intended legal action.
Low performance triggered termination should also be explained for the better understanding of the employee of his strengths and weaknesses. This can help him when he seeks a job in future.
When employment termination is not due to any mistake of the employee, he should be clearly explained the circumstances that have made the expulsion inevitable while serving him a termination notice. These days when layoffs are rampant due to global-recession this aspect has particular relevance. Constant ego-clashes between employees that make working as a team difficult may result in termination.