When I worked for an architectural consultancy, we had three employees in their late '50s "retire" and resurface a month or two later doing the same job for different companies down the street. We threw parties and everything.
We went out to lunch for a coworker who was leaving. She was terrible at her job and was probably leaving before she got fired. She should have been fired long before. It was a pretty awkward lunch with people wishing her well but nobody saying they'd miss her.
The last jobby-job I had, I was let go from after they decided they'd rather burn the high-end business than have a single point of failure (me). So they let me know on Monday I was outta there Friday. Everyone told me to have a going away party at this one bar, so I told everyone to be there. My girlfriend and I sat there, alone, for half an hour.