Do you feel you're not productive enough? Distracted easily? Caffeine just isn't doing it anymore? Well, modern science has the cure - legal speed. It's just like meth, but it's OK because it is manufactured by a corporation and given to you by a trained medical professional.
It's OK little fella... go ahead, take some. It'll make you successful and possibly famous!
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I personally have nothing against drugs, but I do get annoyed with gov't sanctioning the use of some, banning others or doing both when it's feeling particularly wacky!