A Madrasi (resident of Madras India) happened to participate in a competition, which was about writing a shortest story.
The organizers had put a condition that a story must have four ingredients viz. religion, sex, suspense and mystery.
Madrasi's turn came after many attempts by others. Madrasi gave a story, which was just one sentence and read:
"O God, my wife is going to deliver a child".
Ostensibly amused, the organizers asked the Madrasi whether it contained all the four ingredients. Madrasi replied affirmatively and gave his explanation as below:
O God: religion
my wife: sex
going to deliver a child: suspense (whether a girl or a boy)
But where is mystery?' asked one of the organizers.
The Madrasi replied: "Who is the father?"
Seems I heard that Isaac Assimov once wrote the shortest Sci-Fi story:
The last man on Earth heard a knock at the door.
Or something to that effect...
Gad! Did Hollywood ever trash Assimov's I Robot!