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: i work part-time at a kroger, and today i was put on the register at the fuel center (gas station if you don't know it by that name). someone walked up to the counter and i looked up and said "how can i help you today, sir?" and, predictably, this was a woman. the problem was, she had on a backwards ball cap which completely covered hair, and she had all these facial piercings that made it hard to tell. that could have happened to anybody. that part, while i still feel bad about it, isn't the fuck up. the fuck up comes from what i did next: i corrected myself by saying "ma'am", and i don't know why, maybe i was confused or in shock or i don't know what, but then i said "sir... ma'am... sir... ma'am..." and i saw the utter defeat in her face and i feel like my humanity had just exploded. i don't think i've ever said something so awful to another person in my entire life. i'm still trying to figure out why my brain chose to try to cope with the situation the way it did. obviously i apologized, and i told the woman i don't know why i said that, and she said it was okay, but i could tell she was still pretty hurt by it. plus, it was embarrassing as hell, there were people in that line and i looked like a rude jackass. it was just overall a horrible incident and it's probably going to haunt me for a while.

TIFU by calling a woman a man and then freaking the fuck out