One night, while a married couple was sleeping, the phone rang at 1:30 AM. The wife picked up the phone from the night stand and said "Hello". Immediately, the husband took the phone, said nothing and started to listen. After awhile, he yelled, "How should I know - that's 700 miles from here!" and then slammed the phone down. The wife said, "Who was that?" The husband replied, "...it was some fool who asked if the the 'coast was clear'?"