Originally Posted by Spieglergirls

A Highway Patrol cop was sitting in his police car across the street from a bar at 1:30 in the morning when he saw a man come stumbling out the door. The man, obviously inebriated, began walking across the parking lot. On the way to his car he dropped his keys and had a hard time finding them. Finally, after finding them, he made it to his car, but then it took him a couple of minutes to unlock the door. Once he got into the car he passed out. The cop was still watching him as the bar closed and the rest of the patrons left.

A few minutes after the parking lot emptied the man came to, started up his car and began to drive away. The Highway Patrol cop pulled him over and arrested him for drunk driving.

After they get down to the police station the cop give the guy a blood alcohol test and the results come up 0.0%. So the cop asks the guy, "How is this possible" to which the guy replies - "Tonight, I was the Designated Decoy!"