Last time I flew long haul on BA - Feb 2004 - from JHB-LHR the crew seemed to be coming and up and down with orange juice/water every 30 mins or so after lights-out. When we hit turb at the seat-belt sign went on they were out in a flash making the cabin secure - I was wondering at the time how they kept going all that time. It was all very impressive - and I've never had the feeling on this or any other BA flight of being left alone or not seeing cc for extended periods of time.
amowf
ps. the getting out and getting your own drink is fine as long as you've got an aisle seat...otherwise you tend to be stuck...