Not to make light of driving under the influence, I'll share this story:
There was a local bar who had a reputation for over-serving its patrons, resulting in a recent spike in drunk driving related accidents in the area. As a reaction, the local police department decided to park a police car just down the road from the bar's parking lot so they could monitor patrons behavior as they left and walked to their cars. As the end of the night came and "last call" was made, the patrons began to stream out into the parking lot, each heading toward their respective cars.
Immediately the police officer watching from his car noticed that one patron in particular was in a really bad state. His walking was unsteady. He wandered the parking lot back and forth trying to locate his car. Finally as enough cars had cleared out, he found his car. As he leaned against his car to steady himself to unlock to the door, he dropped his keys on the ground. He finally collected himself enough to get into the car, start the engine and pull out. The moment the car's tires touched the public road, the police officer flipped on his lights and pulled the driver over.
As the officer approached the car, the window rolled down. The officer asked, "Sir, good evening. Have you had anything to drink tonight?"
The driver responded, "Not a drop officer!"
"Really??? I find that hard to believe, you see, I've been watching you for the last 10 minutes stumble around the parking lot until you were the last car left. If you haven't been drinking, how would you explain that?"
"Oh, that's easy officer. You see....I was the decoy!"