Winseer:
If you take shifts at short notice, rather than the thursday/friday the week before - then that’s what you’ll be fed all the time “The last minute stuff”. You’ll be covering sickies and other agency “no shows” rather than scheduled leave for full timers, which is by far the better quality of work.
On the other hand there’s probably nothing that will concentrate their mind better regarding lines in the sand.Than saying short notice is fine and then dropping them in it when you’re the last of the go to late calls and saying no thanks wrong type of work.