A state trooper is driving down the highway when he sees a truck driver pull over,
walk to the side of the truck with a tire jack, bang on the side of the truck a few times, and then drive away. A couple of miles down the road the driver does the same thing.
A few more miles, same thing. The trooper pulls the truck over and asks the driver to explain. The driver says, ???Well, the load limit is ten tons, and I??™m carrying fifteen tons of parakeets , so I??™ve got to keep some of them flying around.??? (courtesy of ajad)