Late one Friday night the policeman spotted
a man driving very erratically through the
streets of Dublin. They pulled the man over
and asked him if he had been drinking that
evening.

"Aye, so I have. 'Tis Friday, you know, so
me and the lads stopped by the pub where I
had six or seven pints. And then there was
something called "Happy Hour" and they served
these mar-gar-itos which are quite good. I
had four or five o' those. Then I had to
drive me friend Mike home and O' course I
had to go in for a couple of Guiness;
couldn't be rude, ye know. Then I stopped
on the way home to get another bottle for
later." The man fumbled around in his coat
until he located his bottle of whiskey, which
he held up for inspection.

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

Indignantly, the man said, "Why? Don't ye
believe me?!"