Answer:
Here is my list of reasons why a contract of employment may be terminated:
1. The employee is doing unsatisfactory work.
2. The employee doesn't even show up for work.
3. The employee is stealing from the employer.
4. The employee has endangered the lives or health of other employees through reckless and/or illegal actions.
5. The employee is discovered to have lied about his or her qualifications, and is actually not even qualified for the job in question.
6. The employer has gone out of business.
7. The employer is still in business, but is not doing as much business as before, and needs to reduce the number of employees in accordance with the reduced level of work that needs to be done.
8. The employee has lost some necessary license (typically a driver's license) that is needed to legally do the work for which he or she has been hired.