Driving Under Influence - Irish Style

From  Ireland where driving while under the influence is considered a sport,  comes this story. (Only  the Irish could think of this).
Recently  a routine police patrol was parked outside a bar in Donegal Town After  last call, the officer noticed a man leaving the bar so apparently intoxicated that he could barely walk. The man stumbled around the parking lot for a few minutes, with the officer quietly observing.
After  what seemed an eternity, in which he tried his keys on five different  vehicles, the man managed to find his car and fall into it. He sat there  for a few minutes as a number of other patrons left the bar and drove off.
Finally he started the car, switched the wipers on and off; it was  a fine, dry summer night, flicked the blinkers on and off a couple of  times, honked the horn and then switched on the lights. He moved the  vehicle forward a few inches, reversed a little, and then remained still  for a few more minutes as some more of the other patrons' vehicles left.
At last, when his was the only car left in the parking lot, he  pulled out and drove slowly down the road. The police officer, having  waited patiently all this time, now started up his patrol car, put on the flashing lights, and promptly pulled the man over and administered a breathalyser test.
To his amazement, the breathalyser indicated no  evidence that the man had consumed any alcohol at all! Dumbfounded, the  officer said, 'I'll have to ask you to accompany me to the police station.  This breathalyser equipment must be broken.'
'I doubt it,' said  Paddy , truly proud of himself. 'Tonight I'm the designated  decoy!