Twitter can be a powerful tool for politicians, brands and individuals with a message to share. During the 2008 presidential election, @BarackObama helped Obama supporters connect and coordinate. After an earthquake struck Haiti in early 2010, aid organizations used their Twitter presence to publicize relief efforts for the devastated country.
Twitter fails can be an embarrassment, if not a disaster, for one's public image. But we don't always know who tweets behind the scenes. Stars and politicos sometimes hire Twitter ghostwriters to maintain their accounts, and companies have been known to rely on Twitter interns. When a Twitter scandal breaks, it can be all too easy to blame for-hire tweeters or aides.
Check out our slideshow of Twitter fiascoes that businesses and public figures blamed on interns, aides, translators or assistants (Also see tweets that got people fired and tweets that got people arrested). Have you seen other Twittter fails pinned on "ghost-tweeters" we should add to our list? Email us at technology [at] huffingtonpost.com.