On Caribbean Airways (aka Laker) to/from Barbados they served a complimentary Basian rum punch ... We got thru a gallon of it one night shift and bl00dy good stuff it was ...
Well it would appear the cabin crew weren't mixing it sufficiently before serving it so a memo went around something to the effect "The passengers at the front are sitting there as if they're in church whilst the passengers down the back are singing"
