Slashdot is running a discussion entitled How Were You Fired? It's full of personal stories, some with happy endings, many of them horrible, some totally disgusting, others compelling.
Yet another reason to be really, truly, grateful for tenure.
Someone somewhere, must write manuals about How To Fire Employees, and those manuals must be full of stuff about turning off computer IDs, escorting people of the premises under guard as if they were felons, and not letting them have their personal possessions from their desks.
I know, from talking to victims in places I've worked after they were RIF'd, that these things happen even in work environments where they are utterly unnecessary. It can only be due to mindless automatons in Human Resources reading from a one-size-fits-all playbook.