Birth Rate Study

A little town in southern Illinois had a sensational birth rate. An Ivy League university decided to have a detailed study conducted in the town to shed some light on the causes of this phenomenon. Sociologists, anthropologists, birth control specialists and various professors moved to the town prepared to do a six-month study.
The day the research was to begin, the director of this extensive project stopped off at the single cafe in town and ordered coffee.
When the waiter delivered his drink, the scientist detained him for a moment and asked, “Can you give me an idea was to why your town,above all others in this country, has such a high birth rate?”
The waiter thought a moment, then said, “I think I can. You see, every morning at 4:00, the morning express train comes through town and blows its whistle at all three street crossings. That wakes up the folks here and, as you can guess, it’s too darn late to go back to sleep and too darn early to get up.”