One night, a police officer was staking out a particularly rowdy biker bar for possible violations of the driving-under-the-influence laws. At closing time, he saw one of the bikers stumble out of the bar, trip on the curb, try his keys on five different bikes before he found his. Then, sat on the bike fumbling around several minutes, looking as if he might pass out right there. Everyone left the bar and rode off. Finally, he started his engine and began to pull away. The police officer was waiting for him. He stopped the biker, read him his rights and administered the Breathalyzer test. The results showed a reading of 0.0. The puzzled officer demanded to know how that could be. The biker replied, "Tonight, I'm the Designated Decoy."