The few in-depth commitments we make may revolve around immediate family members, a small group of close friends, a job, a professional identity, a company, etc. And where you are likely to be next. There are indeed some fairly typical reaction phases that people go through in adjusting to involuntary termination. You may not go through all the stages in the sequence outlined here, but you will probably go through ALL the stages outlined at some point as you travel to Let's Get on With It. It is fairly typical for managers to emotionally block out the news of their termination, particularly if it is unexpected.
Some managers report experiencing a feeling of unreality about the entire situation.
Others express supreme confidence in their ability to quickly locate new positions. That is more often wrong than right. With my solid track record, I shouldn't have any trouble finding a new position. Another mistake is to request a lump sum severance arrangement based on the assumption that the job search will be a short one. A salary and benefits continuation program may be in the better interests of the person.