midnight
But it was just as true that he saved each night for working . So it was only natural that people should be puzzled . To everybody 's surprise , Benny stopped his work as suddenly as he had begun it . Exactly at midnight he paused , brushed the dirt off himself , and slipped into his coat , remarking that he thought he `` had saved the day . '' With a hungry look on his face he turned toward the prairie dog village . And there was a great scurrying then . `` You ought to thank me ! ''