Late one night on St. Patrick's Day, the Garda spotted O'Callaghan driving very erratically through the streets of Dungarvan, County Waterford.

The policeman pulled him over and asked O'Callaghan if he had been drinking that evening.

"Aye, so I have. 'Tis St. Patrick's, you know, so me and the lads stopped by the pub where I had six or seven pints," chattered the inebriated O'Callaghan. "Then there was something called 'Happy Hour' and they served these mar-gar-itos which were quite tasty, despite the name. I had four or five o' those.

"Then I had to drive me friend O'Reilly home and o' course I had to go in for a couple of Guinness -couldn't be rude, ye know.

"Then I stopped on the way home to get another bottle for later...," and O'Callaghan fumbled around in his coat until he located his bottle of Bushmills, which he held up for inspection.

The Garda officer sighed and said, "Sir, I'm afraid I'll need you to step out of the car and take a breathalyser test."

Indignantly, O'Callaghan replied, "Why? Don't ye believe me?"

")