A man is driving home, when is pulled over by a patrol man for a broken blinker. The cop looks into the guys' car and sees a collection of knives in the back-seat.
"Sir," the cop says. "Why do you have all those knives?"
"They're for my juggling act," the man says.
"I don't believe you," says the cop. "Prove it." So the man gets out of his car and begins juggling the knives. At the same time, a car drives by.
"Man," says the car driver. "I'm glad I quit drinking. These new sobriety tests are very hard."