It turns out that an HP black ink cartridge costs 71 cents a ml. But if you were to buy blood from the Red Cross it would set you back just 40 cents a ml.
The world's most famous anti-biotic, penicillin will set you back seven cents a ml while Vodka will only set you back a few cents.
So a couple of pages of text will probably cost you as much per ml as a Baccalian night out in St Petersburg, reducing the value of your blood, and give you change for an anti-biotic afterwards. Unless we have got our figures wrong. µ
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