Social media is constantly evolving, and with this evolution, there are more opportunities than not to misstep. A campaign on social media has hundreds of ways it can go wrong, and most of them are unpredictable. Of course, it's important to be as prepared as possible, but sometimes, social media fails are bound to happen. After all, we're only humans managing accounts for brands, right? Learning from others' mistakes is a great place to start, and some of us lucky ones have learned the hard way. Here are a few examples of the social media campaigns that turned total flop.

McDonald's #McDStories
Early in 2012, McDonalds launched a Twitter campaign that asked users to share their memories of McDonald's while using the hashtag #McDStories. The idea behind the campaign was to encourage followers to share nostalgic memories of their first time at McDonald's, when they first took their kids, etc. However, this campaign quickly escalated into something completely different. Users began...