Waitrose, a prolific user on Twitter to engage its followers, stumbled upon a problem with its latest innovative and "down with the kids" marketing campaign. The supermarket asked Twitter followers to fill in the blank.
And did its followers rise to the challenge. Unfortunately for the posh supermarket, Twitter users responded in a rather "snobby" way. And of course, thanks to the notorious, retweet button, the whole thing went viral.
Have a look at Computer Weekly's favourite tweets from when social media marketing goes bad.
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