I used to be a state auditor. Believe me, I was not a welcome visitor. I always treated them the same as they treated me. If they treated me well I would give them the benefit of doubt on grey issues but if they tried to play games with me I could be a real prick. I also informed them at the end of the audit why I treated them the way I did.
But in addition to the bleach he has to swallow a UV lamp.