From: Metal Gear Solid
Genre: Video Games
Who said it?: Col. Campbell
The story behind the quote: The quote comes from the highly acclaimed Metal Gear Solid for the original PlayStation. The game has you controlling Solid Snake who is on a mission to stop the elite FOXHOUND squad from stealing the latest version of the Metal Gear mobile nuclear launcher, Metal Gear Rex.
The quote comes during the middle of the game, during Snake’s battle with Psycho Mantis. Normally, your attacks will not connect on Mantis as he is constantly reading your mind so he knows when to avoid your attacks. Defeating him is almost impossible if you play normally.
However, if you contact Col. Campbell (your commanding officer) enough times, he figures out that Mantis is actually reading your controller inputs! He suggests to Snake (actually, the player) to use a controller in the other port so the mindreader will not be able to check on your movements.
Also, if you cannot use controller port 2 for any reason, Col. Campbell and Naomi Hunter gives you another way to defeat Psycho Mantis…
Geek wisdom: It’s always best to look think out of the box to find great solutions. This is much easier said than done. But by looking at a problem from a different angle, we can, at times, find extremely simple but brilliant answers to them.
Never restrain yourself by looking at a problem one way. Get another person’s views. Put yourself in another person shoes. Try to come up with solutions that are “impossible” to do. You can even try talking to yourself about the problem! There are a lot more ways to “think outside the box” than what’s mentioned here!
My Geek Wisdom 
That last paragraph goes in a loop a lot.