With the same ghoulish intrigue that children pull the wings off a fly, the legs off spiders or as motorists slow to look at a scene of a bad accident, I waited to see the pictures from last night's demonstration in Thailand. The "red shirt" wearing supporters of ousted Thai premier Thaksin Shinawatra promised the world the sight of a million cubic centimetres of blood being drawn from the arms of his supporters and then thrown over Government House to demand that Prime Minister Abhisit Vejjajiva call an immediate election.  A million is a bold figure that I tried to picture; a thousand cubic centimetres, one litre, so one thousand litre cartons of milk.  A more compact notion of the volume would be to visualise a cubic metre of blood; or in more practical terms in the UK the average bath size is 140 litres, so that is just over seven baths filled with blood.