Re:A Nerd’s Way to Walk Up the Stairs (2011)
by joewee on Saturday August 18, 2018 @09:50PM
(#17792064)
Sort of like preppers who teach themselves to identify exits in any venue they enter and how to spot someone that looks out of place. With time you can teach yourself to identify details everyone else ignores, if you have good reason to.
I like this relevant scene: https://youtu.be/IjrWOZby8s8?t=47s