azcentral.com:  “I am a computer programmer and licensed medical marijuana patient. I only use it at night to help deaden the pain so I can sleep. My new job required me to take a drug test. Two weeks later, they told me I was being fired because I tested positive for marijuana. I showed my employer my prescription card, and later that day, they fired me for being incompetent. I had not received any complaints about my work, so I think they fired me because I use medical marijuana. What are my rights?“