Not rum, but 10 years ago I awoke somewhere over the Pacific with a shocking hangover ... worst ever I have had in flight ...
It had been a looong day - as part of a DONE4 MR I had left DXB ~3am for LHR, arriving early morning around 8am. Back then BA was at was T4; hit the First Class part of the "Lounge Complex" for a shower and breaky, followed up with some mid morning bubbles before heading off to LAX, I was well fed and fluid infused on the LAX flight, with maybe a 3 hour nap.
I arrived into LAX mid afternoon on the same "date" that I had left the UAE.
(I was 'parking' the DONE4 at LAX and had a separate economy award booking home on QF108 connecting to MEL.)
Off to LAX T4 and the F/L ...back then the Qantas SYD flights departed from T4 ... a pleasant evening was had and extended by my introduction to QF10
late. It eventually departed after 2am; I had moved around to the A/C before that and had been resolving the world's problems with the bartender.
On boarding I found I had a H/J/K row to myself (seems many had jumped onto QF12 due to the lateness of the flight). I was pretty adept back in those days in setting up a sort of bed with a few blankets over the buckles along with strategically located pillows and promptly went to sleep.
For hours or so later I woke up - dry as the proverbial ...