Put down your phone: How selfies and videos are ruining gym etiquette and invading privacy

Taking selfies and videos is now as common as sending emails or text messages. While taking selfies and videos in the comfort of your own home or in your own chosen company is a given, what about public spaces with strangers? 

That’s a new world to navigate, as you now don’t only have to worry about "Big Brother" spying on you but also the stranger lifting weights or running on the treadmill next to you. 

While a proud workout photo or video to post on social media or send to your...