Bit cheeky but...
Well, I'm not Air Crew (only a PPL) but I do have a question which could make my (and your) lives a tad easier, viz.
I fly long haul a great deal and never sleep. So, I drink. Is it better just to say "May I have 2 / 3 beers / rum and cokes" in one go?" Is this rude. Oh, and yes, I am British!
Oh, and whenever I'm on the LHR-JNB sector SAA and wonderful Virgin alway leave the "bar" open when they go for their snooze whereas BA get snotty. I mean, I know I'm usually at the "back of the bus, dear" but they do seem to have the English Disease.
Now then, that's that off my chest.
Yours aye.