To your employer, you are what you tweet.
While most of your Twitter updates may be harmless--whether it's the latest viral video or what you had for breakfast--voicing an opinion on Twitter, even if it's not expressly critical, can land you in hot water and out of a job.
We've taken a look at 13 people who were fired over their Twitter posts. Was it excessive or did they earn it? Vote in the slideshow below.