I read about this a while ago, but I thought about it again because we bought some ink for our new printer. Did you know that computer ink is one of the most expensive liquids in existence? Check this graph out that I got from this website. Also, notice how expensive oil is in comparison to the rest of them.
I read on another site that scorpion venom is the most expensive fluid in existence. One gallon of that stuff could cost you $38,858,5007.46, according to this site. I wonder what scorpion venom is used for?