'Have an Irish Coffee, for fook's sake'

As we were all walking through Dingle, a drunk proprietor of a music store asked me if I would like an Irish coffee, and I tried to politely decline. It was 7:30 in the evening and I wasn't at all interested.  Bill joined us and he offered Bill the same. He also politely declined. The proprietor looked at us like we were crazy.  He said, 'It's available.  It's already made up. It's AVAILABLE!  For fook's sake, have a coffee!'

'Available' means 'free'.  He couldn't understand why we were turning down free alcohol. =)