I had a summer job once, in a dept. store in the jewellery section. There were only two of us manning the entire section because they were too cheap to hire more staff. I was the concession manager for one brand and my colleague for another. The other counters had been left to effectively rot for years with no one selling the merchandise and no one looking after it.
Then, one day, the floor manager told us to start mending a load of old, broken jewellery from these decaying concessions; INVENT prices for each piece and then put them back out for sale as if they were new! I was fairly gobsmacked and my colleague, who had worked there for years, very definitely had other ideas. She waited until the floor manager had disappeared from view and then grabbed bundles of broken stock from the drawers and stuffed it behind a loose panel in a cupboard near the floor, hoping the manager would forgot all about it. Success! She completely forgot she ever asked us to do it! For all I know, the jewellery's still there...
To be fair, it would have taken days, if not weeks, to untangle the mountains of broken necklaces, find all the missing pieces and put them back together convincingly, and it was all cheap tat anyway. Also, it was not our responsibility as it was all from rival brands, not to mention it being totally deceptive to the public. They were really cheeky asking us to do it so I have no regrets at all, and watching my colleague think so quickly on her feet and hide it all behind a "secret panel" was delightful. It was one of the funniest memories I have from any job and I'm eternally grateful to her for it!