At some stage in your career you will be called upon to effect an Employment Separation. This is unavoidable, and anyone who says they never will is kidding themselves.
It is a somewhat traumatic event for an employee. In most cases they will not truly understand why they are being terminated. Others may see it as a relief. Some will see it as an opportunity to extort money from the employer. Others will view it as an opportunity to move on to bigger and better things.