A cop saw a car weaving all over the road and pulled it over. He
walked up to the car and saw a nice-looking blonde woman behind
the wheel. There was a strong smell of liquor on her breath. He
said, "I'm going to give you a breathalyzer test to determine if
you are under the influence of alcohol."
She blew up the balloon and he walked it back to the police car.
After a couple of minutes, he returned to her car and said, "It
looks like you've had a couple of stiff ones." She turned red,
and replied, "You mean it shows that, too?"