aahahaa!  So was it you at the Starbucks in Riverside last Sunday ;D because I witnessed exactly that  go down while I waited for my Americano to go (went inside instead of the drive-thru because it was a cluster fuck of cars/trucks with irrate heifers honking while others took their everloving sweet goddamned time ordering - figured it would be more tolerable in climate-controlled conditions/not waste gas idling.  Anyway this buff guy two people in front of me -  about an even 6' tall - smiled at a chubster in tights and peasant top showing off her udders while on her phone to the side of the line perusing the baked goods, but then he glanced away again to the menu.  She suddenly was really social -- had been staring at her phone between pissed-off glares at the people in front of her & the overwhelmed baristas in the way of her beetus hit.  And yes I actually heard "HEY don't I know you" come out of her blow-job red lipsticked piehole!  Followed by something-something-"at-the-UCR-campus" -- thought she saw him there, etc.   But buff dude nodded vaguely as he kept scanning the menu and he put his earbuds on -- and heifer's patter just kind of went "ahhh, yeah" and she quickly went back to her phone-scrolling.  It all just happened in a couple of mins & your comment makes me wonder how many times a day it happens, specially at Starfucks.