I didn't read the whole article, but I would agree with the beginning in that not buying gas for one day is going to have nil affect on gas companies making money. If they want to boycott gas and have an effect, they better start walking to school/work and quit driving their cars. Even then they won't garner enough participation for the gas companies to notice.
At least not until gas hits about 8 bucks a gallon or so.
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Some people are like slinkies, they aren't really good for anything, but they still bring a smile to your face when you push them down the stairs.