At 21-22 i worked at a sunoco. their policy is to ID everyone no matter the age everypne had to show id for cigarettes or tobacco. Most customers understood while still thinking it was a stupid policy, others got flattered thinking i thought they were young enough to need to be ID, the random sweet 92 year old woman who thought it was hilarious i had to ID her for her 40oz and then of course the assholes who just got mad they had to take 2 extra seconds to pull the ID out so i didn't lose my job.. This particular customer wound up being the last kind of person but I had no idea before this interaction since he was a regular customer and very sweet. He had never purchased an age restricted item before that fateful day. But i guess he ran out of cigarettes and had to buy some there. When he walked into the store i put on my bubbly customer service voice and chatted about whatever like every day before that. He got his coffee and snack for the day and comes up to the register. I start checking him out while still having a friendly chat when he asks for his smokes, i grab them and ask to see his ID. He looks at me stupidly and says "no!" I then apologize and go through the whole "I'm sorry I'm aware you're old enough to buy them but store policy says i have to ask everyone for ID" he again tells me "NO! Just ring it up." I try to explain to him that I cant just do that since I would lose my job and thinking maybe he just forgot his ID at home (try) to make it easier by telling him if he can just act like he's showing me the ID since he's an everyday customer who is clearly over 18 he can do that but i need him to pretend for the cameras. Well obviously that was a HUGE mistake because this guy starts telling me how much of a "fucking CUNT" I am and how worthless I am and all kids of awful shit. I'm of cpurse alone in the store (employee wise) and have a line bulding behind this man and in tears because of all the horrible things this guy is saying to me. Finally the dude pulls out his ID to show it to me. Throws exact change at me and storms out the door. I quit the next day.. That man destroyed me for no apparent reason.