In 1989, I had the rare opportunity to do the last six hours of a station before its ownership and format changed, an honor afforded me as the only morning jock they'd had under that format, as well as APD and MD. Unrelated circumstances had kept me off the air for several days before then, so the audience probably thought I had been prematurely fired -- the format change had been announced in advance -- and it was a surprise when I turned up again at 6:00pm on a Saturday. (My PD didn't even tell the rest of the staff that I was going to do it.)
We did the most free-form show I have ever done in my career ... lots of listener "last requests", memories from the other jocks (all of whom turned up, one by one, as the evening progressed), and at the top of the show I pretended to crumple up the hot clock, explaining to the audience what it was, and announcing that I was going to do whatever the hell I felt like for the next six hours.
So the words "After all, what are they going to do ... fire me?" resonate well with me as well.