Security markings - always a PITA!
When I was holding at Valley betwixt Gnat and Hunter courses, one of the Gnat Sqn Cdrs left his little daughter in his office for an hour or so, whilst he went off on some station business.
When he got back, he was a bit miffed to find that the little cherub had found his rubber stamps and ink pad - and had stamped virtually everything she could find as 'SECRET' or 'CONFIDENTIAL'. Took a bit of explaining to the Feds when he had to get everything officially destroyed....
