Kens' reply is along the right lines but the company will know that someone in work has stuck their nut in.
One supervisor I knew was invited for a "walk round" by the manager, yet again. This happened day after day and from what he told me, he said the manager was constantly hinting at getting a replacement and asking loads and loads of questions. In the end, whilst on another "walk" in a secluded part of the company, the Supervisor grabbed the manager by the collar with both hands and threatened to smash his face in if he didn't stop harrassing him. How could the manager prove what had happened? There was no CCTV. It worked, and before too long, the manager was "moved on" . A bit extreme, perhaps, but sometimes these things are necessary. :o)