Today I learned, there’s a way you can tweak a LCD monitor in such a way where no one can see what’s on it, unless you wear those special, home made, magic glasses!
Sounds awesome, right? All you need is a LCD monitor and a pair of old (or new) glasses. Open that monitor and remove the polarizing film. Put the monitor back together and replace the lenses in a pair of glasses with peices of that polarizing film you removed. And that’s it, you’re done!
This is what I’m talking about.