The newest online challenge is called the "Florida Man Challenge," and it's based on the fact that so many stupid criminal stories come out of Florida.
Here's how to do it: Just google the term "Florida man," followed by your birthday. So, if your birthday is June 22nd, you'd google, "Florida Man June 22nd." And a headline from a stupid Florida Man criminal story should be one of the first results.
You might have to poke around a little as this has gone viral, but the point is, there are so many Florida Man stories, you'll eventually find one that happened on your birthday. Then you're supposed to post it on social media.