The infiltrator turned out to be disguised as Winston the janitor's cat - and this in the same week, as it happened, that Jack McConnell promised enhanced inspection of public services.
Clearly someone on the comic's staff has a deft comic touch - or impeccable insider information. If your janny has a cat, check it out. Remember, Graham Donaldson, head of the inspectorate, intends to target underperforming schools. You have been warned.