To learn more about your rights with respect to off-duty conduct, read below: 1. Is there anything I can write about in my blog that I cannot be fired for? I have a second job on weekends, which never interferes with my work for my full-time employer. I smoke medical marijuana in a state where it's legal, however, my employer fired me for testing positive for marijuana. Generally speaking, if there is no law specifically protecting you from being fired for the activity under consideration, and if you are not a union or governmental employee with special protection against being fired without a reason, then you are employed at will.