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The Twittersphere is ruthless if you make a faux pas in 280 characters or less.
Just ask Ed Balls what happens when you tweet something you didn't mean to.
Spare a thought then for Rudy Giuliani (although actually, don't, seeing as it's Rudy Giuliani) who seemingly-by-accident tweeted the word "you", and - as you might expect - instantly became a meme.
Too far @MaryPatHyland, too far...
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