A friend of mine worked as a State Highway patrolman in Wyoming for several
years. Whenever he pulled someone over for speeding, he would always ask
them why they were exceeding the speed limit. If the excuse was original,
he would usually let them off with a warning. He said the best excuse he
ever got was the following:

Him: So, why is it that you were doing 70 mph in a 55 zone?

Driver: Well, officer, my wife is going to get pregnant in 30 minutes
and I want to be there when it happens.