Diving into the political maw of social media is more tempting than ever. But a tweet fired off in the electricity of the moment can have unintended consequences for employees and their employers.

In the past few days, a dean at the Catholic University of America in Washington, D.C. was suspended for a tweet. A professor at Georgetown University is facing calls for her resignation, also over a tweet. A Fox News contributor was fired, again for tweets. And the New York Times had to answer for a reporter’s political tweet.