Satirical genius from an unexpected source

No, no, a simple "wash me" wasn't enough for whichever contemporary satirist decided to write in the dirt on the back of this G4S van. It made me laugh heartily on the way out of court.

Things may soon be bad enough that they're having to use the G4S prisoner transport folk to cover 'that event which normal people mustn't name for fear of being sued for besmirching its reputation'...