Breathalyzer Test

Late one Friday night, a 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. It's 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 of those. Then I had to drive me
friend Mike home and of 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..." Then, 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?!"