You're passing through hotel reception on the way to your crew transport when your very worried looking co-pilot informs you that one of the hotel staff has 'stolen' some of the imprest money! Do you:
a. Believe your co-pilot and demand an explanation from the manager.
b. Call the local police and let them deal with it.
c. Interrogate the co-pilot and ascertain that he handed over the cash (in an unsealed envelope) to the receptionist 'for safe keeping' the night before and that the amount missing was spookily exactly the same as a days allowances!