The Secret of the Flame Tree - S6-E2
Continuity mistake: There is a long lecture by the editor, Patricia Lawrence, at the beginning of the episode. The victim reaches the cliff where she will meet her demise. Meanwhile Patricia says "Exploring the many pathways that will eventually lead..." and there is a cut to a close-up of the writer. During the instantaneous, mid-sentence cut, the wind on set increased exponentially; all of a sudden it even moves the earrings of the woman enjoying the conference behind Sylvie Baptiste. (00:03:40)
Answer: Most likely they had only tropical exotic drinks, he wanted an old fashioned English beer.