Everyone admired his vast library.  He had nearly 10,000 volumes.  The man lived on a tiny pension.  Then an enterprising librarian tried to trace down a book that had not been returned.  In the house there were "books everywhere," she said.  She found the missing library book and also found an unbelievable number of other books which had been borrowed without permission from various public and private libraries and book stores.  The librarian got her book all right, and five trucks and three police vans carted the rest away to return to their rightful owners.  That is what you could call a rather extreme case of borrowing.  But borrowing has become a real problem the world over.