A cop is staking out a bar
for drunk
drivers. At closing time, he sees a guy stumble out of the
bar, trip on
the curb, and fumble for his keys for five minutes.

When he finally gets in, it takes him another five minutes to get the

key in the ignition. Meanwhile, everybody else leaves the bar and
drives
off.

When he finally pulls away, the cop is waiting
for him, pulls him over,
and gives him a Breathalyzer test. The test
shows he has a blood
alcohol level of 0.0.

The cop says,
‘How is this possible?’ The guy says,’Tonight I’m the
designated
decoy.’