You don’t have to spend much time on social media to know that it can be a very ugly place with a lot of polarizing views and comments. But, you may want to think twice before you like, share or join the conversation because it could cost you your job. Bill McGeveren, a professor at the University of Minnesota Law School says ‘yes’ you absolutely can be fired for what you put out there on social media.

McGeveren says if you think your free speech is protected by the First Amendment, you’re wrong. He says the First Amendment says Congress shall not restrict speech, meaning the government, but the Constitution doesn’t stop private companies from doing that. He says, in fact, the courts have sided with companies that it’s their own freedom to be able to fire someone when an employee has tried to sue to get their job back:

McGeveren says the bottom line is it’s always true that you need to be careful what you say on social media. He says you’re not just in your backyard talking to friends.