In case you weren't aware, there are cameras just about everywhere these days.
Just ask Hong Kong lawmaker Wong Ting-kwong, who has been caught on camera during a parliamentary debate, checking out some saucy pictures of a lady taking an unconventional approach to the game of snooker.
Maybe Wong Ting-kwong, a a member of Legislative Council of Hong Kong, should have put a privacy screen on his iPhone?
That perhaps would have prevented any onlookers from misinterpreting his attempt to give advice on snooker play to a young scantily clad female as anything grubby.
Privacy screens can help stop snoopers from taking a sneaky sideways glance at what you're up to on your smartphone or laptop, preventing sensitive information and nubile pictures from your WhatsApp friends from being exposed... while still remaining visible to you.
Mind you, looking at the above picture, it's unclear whether even a privacy screen would have been that much use, as the camera is looking at the screen fairly straight-on.
Perhaps the tried and trusted method of taking a peek over your shoulder to see who might be watching is best after all then?