It might be like trying to argue with Jade Goody or Vicky Pollard, but just think how they end up looking. Nobody takes people like that seriously.

They put up their fortifications and you undermine the foundations.

The wall comes tumbling down and you say "look your walls have fallen down" and they respond "oh no they haven't" or more pertinently "... yer but no but yer but no but ...", convince themselves that they're doing fine and soldier on.

Oh why oh why can't people just ... well ... you know ...