That after 5-10 years of not having seen someone's face, that you automatically just forget it. You have no recollection of ever having seen that person before, and they have the same reaction to seeing you. Because think about, if you haven't seen someone for that long, there's probably a reason. I barely remember you, why would I give a fuck about what you're up to now after bumping into you at Subway? OH I WAS JUST DYING TO RUN INTO YOU AFTER BARELY RECOGNIZING YOUR STUPID FACE. I'D JUST LOVE TO REMINISCE ABOUT HIGH SCHOOL WITH YOU, I'VE BEEN THINKING ABOUT IT EVERY SINGLE DAY, WHATEVER YOUR NAME IS.