Very simple solution

the term "Separate Checks and Dutch" which is the program established back in the hotel lobby.

No money??? Oh well... next time bring money and or food food from home to avoid the overnight fast. Or they can sponge off their fellow flight attendants. Afterall they've been in that same predicament before and I'm sure they will be more than happy to open their wallets or credit cards for the fund raising event.

Oh did I mention that's one of the great reasons for flying cargo?