St Patrick's Day

Three church people went to a pub. One was a female Priest-in-Charge, one was a Roman Catholic Father, and the other was a Minister from the URC. So the question was posed, what do you want to drink? After some thought Green Guinness was the reply. With that the barmen said, "not here you won't." The URC Minister feeling somewhat disappointed said, the last time I had a green Guinness was in an Irish Pub in El Salvador in 2000!