A policeman is out on highway patrol, when a blonde races by him at about 100 mph. He catches up to the fast moving vehicle and realizes to his horror that the driver is knitting behind the wheel.
The policeman gets on his loudspeaker and commands the driver to PULL OVER! but the other driver seems to mutter and just points to the piece she is knitting. The highway patrolman has to repeat his command a couple of times before the speeding car finally slows, and eventually stops.
Once parked, the patrolman approaches the other car. Before he can say anything the driver leans out the window waving her work-in-progress, and says, "See silly? I told you. It's not a pullover, it's a scarf!"