Bad news cancer fighters, arthritic sufferers, and those of you who worked so hard at getting your medical marijuana ID card under false pretenses: employees who partake in the kind medical bud at home can be fired for testing positive for the drug at work. Which? Wow. In a 5 to 2 decision today, the court claims that Proposition 215, "the 1996 state initiative that allowed Californians to use marijuana for medical purposes with......