Recently a routine police patrol parked outside a local neighborhood bar.
Late in the evening the officer noticed a man leaving the bar so 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 and trying his keys on five
different vehicles, the man managed to find his own car which he fell into.
He was there for a few minutes as a number of other patrons left the bar &
drove off. Finally he started the car, switched the wipers on and off (it
was a dry night), flicked the hazard flasher on and off, tooted the horn &
then switched on the lights. He moved the vehicle forward a few inches,
reversed a little & then remained stationary for a few more minutes as more
patrons left in their vehicles. At last he pulled out of the parking lot &
started to drive slowly down the street.

The police officer, having patiently waited all this time, now started up
his patrol car, put on the flashing lights, promptly pulled the man over and
carried out a breathalyzer test. To his amazement the breathalyzer indicated
no evidence of the man having consumed alcohol at all! Dumbfounded, the
officer said "I'll have to ask you to accompany me to the Police station,
this breathalyzer equipment must be broken.

"I doubt it," said the man, "Tonight I'm the designated decoy."