Forget planking, now it's 'batmanning': Latest bizarre internet craze of hanging upside down by feet

The internet craze for taking photos of yourself 'planking' - or lying down in unusual places - has now sparked an even more terrifying trend.

http://www.dailymail.co.uk/news/article-2034637/Batmanning-Latest-bizarre-internet-craze-hanging-upside-feet.html