And don't forget that FA's are also responsible for the measuring of spirits into mixed drinks.
I recently watched a QF FA in J slosh what he thought was a measure of Baileys into a glass and poured on the coke (now that sonds like a hiddeous drink in anycase).
The point is that the FA really had no idea if he had poured 30ml or 60ml and neither would the passenger. RSA laws at least in NSW require all spirits to be poured with a measure.
To top it off I later watched the same FA pop the L'Ocittane lotions and creams fromthe loo into his bag - a real pro.