Employers can still fire employees for marijuana use, even in states where it's legal. But one case heard in Colorado's Supreme Court Tuesday morning could change that. Brandon Coats, a 34-year-old quadriplegic medical marijuana patient from Colorado who was fired by Dish Network for his state-legal medical use in 2010, made his case in Denver before the highest court in the state on Tuesday, arguing that employers should not be able to fire patients like himself for using their medicine legally and outside of the workplace. "Mr.