For awhile at MLL I worked for a captain who kept the harbor and approach charts for the ports we hit in the drawer below the forward log desk. He insisted on having them out pre-arrival as an easy reference for his own use. No one ever corrected these — but he wanted them for himself.
At some point when he was off the opposite master was poking around, found them and lost his shit. Had them thrown out immediately or donated to the bosun for use as stencil templates.