I’m in an office with my back (and monitor) towards a whole bunch of co-workers. They can always see what I’m browsing and I often get remarks about what my monitor shows. Don’t get me wrong, I don’t watch a lot of adult content while at work, but still.
Apparently one entrepreneur felt the need to come up with this gadget to make it easier to check out certain types of content undisturbed. Check out the “Retrovisor Antiflagra” which translates to “Mirror Stop Flagging Adult Content”.
More info about that one here.