OK, here's one to pay for the time I've spent at work reading instead of working!
A married couple was asleep when the phone rang at 2AM. The blonde wife picked up the phone, listened a moment and said, "How should I know, that's 200 miles from here!" and hung up.
The husband asked, "Who was that?"
The wife said, "I don't know, some woman wanting to know "if the coast is clear."