A police officer attempts to stop a car for speeding, but the driver keeps on increasing his speed until he's topping 150km/h. But he eventually realises he can't escape the long arm of the law and he pulls over by the side of the road.

The cop approaches the car and says, "It's been a long day and my shift is almost over, so if you can give me a good excuse for your behaviour, I'll let you off with a caution."

The guy thinks for a few seconds and then he says, "My wife ran away with a cop about a week ago. I thought you might be that officer trying to give the bitch back!"