Sneakily scrolling your newsfeed at work...Should your boss confiscate your phone?

You’re at work. The afternoon is dragging. You have a quick glance at your feed, do a swift update, maybe answer a message about what you’re doing later, then get back to the task at hand. Is this wrong? Does it slow you down, or does taking a mini break – like a cigarette break, before we stopped having them – give you a moment to reset yourself, and work even better when you resume?

Or is it a distraction? And if it is, is it then ever acceptable to expect people to surrender their mobile phones at the office? To hand them over on arrival at work, and get them back at lunchtime? Or is that making five year olds of the adult workforce?