Auditors Paradox
A company policy whereby the doors are to remain locked until after the Auditor has left the building results in a paradox in which the auditor is unable to leave the building resulting in continuous audit.
You see if we get the company to send an e-mail saying the doors are to remain locked until the auditors leave it will create an Auditors Paradox, the auditor will be unable to leave the building resulting in continuous billing at an hourly rate in perpetuity.