Definition: In this task, you are given a Reddit post as a text. Your task is to generate a title for this text. The title should start with "TIFU by", followed by a situation that caused humor. The title should contain 7-12 words, ideally.
Input: Text: it was the last hour of my shift cashiering at a little grocery store in my hometown. i was in complete autopilot as a monkey could do my job.
 knowing customers usual cigarette orders was considered good customer service to most everyone that came in to my store including my managers. a black man that i honestly mistook for one of my regular buyers of newport cigarettes came through my line with his kid and mumbled something at me. i turned around and started ringing up the cigarettes. the man just stared at me when i handed him the cigarettes so i asked "is there something wrong?" to which he replied "why are you giving me these?". i immediately realized what i fucked up and was so embarrassed i wanted to puke. i was speechless and was trying to muster up an apology when the man said "i asked for enfamil (baby formula) but i guess you heard chicken and koolaid". i said i was very sorry that it had been a long day and i wasn't listening. he said "don't worry about it" and i took the smokes off his purchase. until this day i beat myself up over this. am i a horrible person? i'm not racist... just dumb.

TIFU (about three years ago)by handing Newport's to a black man that didn't ask for them.