Price comparison calculus and the mathematics of complaint

Tánaiste Mary Harney is clearly fed up with people whingeing about the pub down the road selling pints cheaper than the pub they’re drinking (and whingeing) in.

Mary Harney wants the drinking whingers to take responsibility, do the math and move to the cheaper pub.

Indeed, judging by her tone of voice, if they don't get a move on, she'll propel them from the dearer to the cheaper pub on the toe of her boot.