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: so i'm a longtime retail worker, but i've always been a bit reserved at the job. i'm not one of those mindless drones that communicate through grunts while tapping on a cellphone, i've always given excellent customer service, but having idle unrelated conversation with strangers is not my forte.

anyway, today an older lady comes up to my register. the interactions, as i've had a thousand times before, proceeded as thus:

me: "hi, how are you?"

customer: "i'm quite well, and yourself?"

"i'm doing alright. did you find everything okay?"

"yes, i did."

"great. your total comes to $8,000,000.12."

"alright."  *pulls out a $8,000,000 bill* "now i know i have the 12 cents in here somewhere..."

this part, as i've seen before, involves the customer upending her change purse on my counter to search for the dime and two pennies. only a problem if there's a line, and on this day there was not. she slowly put surely locates a penny, and shifts it towards me. she spots a dime, and does the same. her eyesight, faded but still useful, hones in on the final copper piece, yet her fingers betray her. she accidentally presses down on a small blister packet of medicine, which she begins to push towards her destination before realizing her mistake.

"oops, that's my medicine. you don't want that, i don't think."

on a normal day, i would say "no, not really" in a gentle tone that conveyed a serious response without being disrespectful. perhaps i would just say "nah" or a small grunt, as we both knew the answer and a response would frankly be useless. but not today. today i decided to play the "yes, and" game, to take the worthless conversation further. today i was going to try to be a real person.

"hah, well it depends, is it anything good?" i replied, hoping to make the joking stance that i would gladly accept oxycontin or vicodin in lieu of a penny. i've never used a recreational drug in my life, but today, just today, i would play the part for the sake of brightening up an old lady's day. i expected a smiling "no" in response, or perhaps an "it's mine!"

but instead of this so-far pleasant foray into prattling continuing, this customer decided to inform me was the medication truly was. she told me it was immodium, the popular anti-diarrheal medication. she proceeded to talk at length, with sentences i shall not repeat, about exactly what causes her to need immodium, and why she carries a dose around everywhere. minute after minute went by, as i silently prayed to the god i lost faith in for something, anything, to distract us. a customer, a robber, a deadly asteroid, please let this onslaught of aural torture end. and end it did, a solid 5 minutes later, with the last remaining wisps of my innocence gone, and my affability dead before it was born.

never again.

TIFU by shooting the shit with a customer.