Quite right - the Shetland definition of a boozy night is a night (or a week) that you can't rememmber anything about.

'Red cans' were/are McEwan's Export. They were also know as 'Shetland Roses' as they 'grew' alongside every road, where folk threw the empty ones out of the car window and looked from a distance like red roses. Well they did if you had enough of their contents inside you...

I lived in Shetland for 12 years but only managed this one visit to Fair Isle in about 1976 or 1977. It was a combined social and birdy visit, as friends of ours from here on Portland had moved into the bird observatory. The music was a very nice bonus.