Video-calling hasn’t taken off in the West yet, which I’d put mostly down to the fact that once you openly start using it, your boss and/or partner will assume they can videocall you at any time and see exactly what you’re doing, where you’re doing it, and who you’re doing it with.

It’s a slippery slope for anyone pulling a sickie, having an affair, or just going about their business in a private way. And y’know what? South Korea may be one of the most advanced mobile markets in the world, but people there don’t want it either. This is despite the fact that operators and handset manufacturers are keen to tout it as a hot new service.