<human>: Give me the gist of the text in a nutshell

My coworker found another job and submitted her 2 weeks notice to our employer. She was instrumental in our office and we really needed those two weeks to transfer her projects and files over for a relatively smooth transition. And we were planning to have a going away party in the break room on Jul 31, which was supposed to be her last day. Our employer decided not to honor her 2 weeks notice and terminated her immediately. Security was waiting for her when she got to work. She wasn't allowed to even log onto her computer to get her personal files. They just stood over her while she had to clear out her desk and workspace and pack it in her car. It was an eye-opening experience.
<bot>: Companies do not care about you, no matter how great you have been or how long you have been there. Expect the day you submit your "2 weeks notice" to be your last day on the premises and prepare accordingly.