sorting out mails. I got the same in mine too, mostly bank statements. But I just return them back to the mail man in the window & write some note: "THIS MAILS DO NOT BELONG HERE! PLS RETURN TO SENDER". Or "THIS PO BOX NO. NOW BELONGS TO________________".

"I do live by the motto that pessimists are usually right, but all the great change in history was done by optimists" -Thomas Friedman