A man stumbles out of a bar
one night obviously drunk.
he makes his way down the street
knocking into everything in his path.
a police officer watches him
from a cruiser across the street.
the man comes up to a parked car,
fumbles around in his pockets,
gets his keys,
and proceeds to drive away.
the police officer,
unbelieving what he saw,
pulls the man over a few blocks down the road.
the man gives a breathalizer for the officer
and to the officer's amazement -
the guy was stone cold sober.
"i can't believe it!
i watched you walk to this car,
drive erratic all the way down the road,
and my machine says you
have no alcohol in your system!
how can that be???"
"oh that's easy",
replies the man.
"tonight i'm the designated decoy."