Hell hath no fury like a voter who feels he or she has been treated like a fool.
The political left was already paying a heavy price at this election for displaying the characteristics which leave voters stone cold - namely disunity, political incompetence and not a little arrogance.
The left may now pay an even bigger price on Saturday thanks to Kim Dotcom's Moment of Truth evaporating into a Moment of Struth - as in "struth, was that all he had to reveal" after months of squashing much else far more worthy of debate out of the political picture.
So robust was Dotcom's evidence of prime ministerial untruths supposed to be that it would sink John Key faster than the Bismarck. Instead it is Dotcom who is now facing a backlash for failing to deliver.
So far, that backlash is confined to media who have been strung along for months. Voters may be more tolerant - but only up to a point. They take objection to being hoodwinked. Perhaps the only saving grace for Internet-Mana is that in treating voters like fools, Dotcom has shown himself to be an even bigger one.