A little town had a high birth rate that had attracted the attention of the
 sociologists at the state university.
 
 They wrote a grant proposal; got a huge chunk of money; hired a few
 additional sociologists, an anthropologist, and a family planning and birth
 control specialist; moved to town; rented offices; set up their computers;
 got squared away; and began designing their questionnaires and such.
 
 While the staff was busy getting ready for their big research effort, the
 project director decided to go to the local drugstore for a cup of coffee.
 He sat down at the counter, ordered his coffee, and while he was drinking
 it, he told the druggist what his purpose was in town, then asked him if he
 had any idea why the birth rate was so high.
 
 "Sure," said the druggist. "Every morning the six o'clock train comes
 through here and blows for the crossing. It wakes everybody up, and ...
 well... it's too late to go back to sleep, and it's too early to get up..."