[bambax]

It was handled in a Monthy Python's way, as per the opening credits of The Holy Grail:

> A Møøse once bit my sister ...

We apologise for the fault in the subtitles. Those responsible have been sacked.

Mynd you, møøse bites Kan be pretty nasti...

We apologise again for the fault in the subtitles. Those responsible for sacking the people who have just been sacked have been sacked.

Møøse trained by TUTTE HERMSGERVORDENBROTBORDA

(...)

The directors of the firm hired to continue the credits after the other people had been sacked, wish it to be known that they have just been sacked.

The credits have been completed in an entirely different style at great expense and at the last minute.

(etc.)

- - -

It's unwise to fire the firers at the same time as the firees.