I heard a story on a background check being denied. This guys job took him out of the country for months at a time, he would pawn his handgun (for safekeeping) to the same shop and get it back when he was stateside. He had done this many times but was denied after his girlfriend 'forgot' to pay a traffic ticket she had gotten while he was away. No reason was given to him or the pawnshop, he ended up getting it back after appealing and paying the ticket.