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: this didn't actually happen to me today per say, but i was reminded of it yesterday. it actually happened about several months ago, back before i was an active user of reddit...

anyways, i was out running errands and halfway during my first stop, i realized that i really had to take a dump. so, i went and did my business and then went back to shopping, feeling at least 4 ounces lighter. at the time it felt like that was all of it. how wrong i was. during my second stop, everything went swimmingly, no issues, i even got a great deal on one of the things i had been looking for. roughly 15 minutes later i had arrived at the location of my last errand. around 20 more minutes later, i had found most of what i was looking for. i remember that i dropped something and bent over to pick it up and then suddenly, my stomach started rumbling something awful. i really had to go again, at least twice as bad as last time. here's the problem. the place i'm in at this point doesn't have public bathrooms, so i asked the person at the counter to watch my stuff for me and scampered outside. i looked to the right and saw that there was a mcdonald's in the distance, i knew they'd have a public bathroom, but it was about a 10 minute drive away from where i was. i didn't think i'd be able to make it, so instead i started walking to the left. first i came upon a thrift store, they didn't have a public bathroom either. next door to the thrift store was one of those tiny grocery stores with a hindu name that i couldn't pronounce. there was bathroom in there, but it was currently out of order. after that i went further to the left and found a mechanic's garage. they had a public bathroom, but as i approached it, someone else beat me to it. i waited for a minute or two, and then when they didn't come back out, i realized that they weren't peeing. so, i left and kept going in the same direction. by this point, i had been holding it in for around 7 minutes and i was beating myself up for not having gotten into my car and driven over to the mcdonald's when i had the chance. next door and across the street from the mechanic's garage was a small strip mall. i could see in the distance that one of the businesses had their door propped open. i made my way over to it and discovered that it was a denture clinic. i went inside and up to the front desk, but there was nobody sitting there. i knocked on the wood of the desk quite loudly.

me: hello? is anybody here? do you mind if i use your restroom? it's sort of an emergency!

nobody answered, so i waited, doing a little dance without realizing that i was doing it. just then, i saw it, only a few meters away with the door wide open: a bathroom! at this point, i was so desperate that when i saw it, the light from the bathroom seemed to be giving off a sort of heavenly glow and i could hear an imaginary choir singing hallelujah. so, in the best james bond impression that i could muster at this point, i dove to the floor and used the front desk as cover. then i rolled into the bathroom and stood up, peering out from around the corner of the room to see if the coast was clear. when it was, i closed the door quietly and locked it. i stayed in there for several minutes after i finished just to be on the safe side. when i felt confident that i had gotten rid of everything i could at this point, i flushed, wiped, then washed my hands. as i unlocked the door and pulled it open, my heart nearly skipped a beat. standing at the door was a person who could only be the owner. he had closed the door and was using his key to lock it from the inside as i opened the bathroom door. the man was looking at me as if i had just had sex with his wife in the bathroom. i don't know for sure, but i think he was from pakistan, if not, then somewhere in the middle east. he had a thick accent. the next part happened so fast and i was so freaked out that i didn't really hear what he was saying, but nevertheless, i have a general idea of how the conversation went. 

him: what the fuck is wrong with you!? you think you can just come in here and use the bathroom like you own the place!? i was in the middle of an appointment and you interrupted it! mcdonald's is just down the street.

me: i'm very sorry sir, the door was open and i didn't see a sign saying that the bathroom was for customers only. if it helps, i can give you money to reimburse you for interrupting your appointment. 

him: exactly, it's for customers only! you're not a customer! you're a fucking pig! your parents must be ashamed of you! i'm trying to run a business and you come in here disrespecting me and my client! i had to stop working on him in the middle of his appointment to come and deal with you!

by now i was starting to get angry. this guy was insulting me and treating me as if did my business in the middle of the floor. i thought that by knocking and trying to ask permission ahead of time, that he'd at least be civil with me if he caught me. i had been nothing but civil and polite with him this whole time. well, fine if he doesn't want to be civil with me, then i why should i be civil with him?

me: first of all, i don't need dentures, so that's why i'm not a customer. second of all, it serves you right that i came in here to use your bathroom when you left the door wide open. third of all, i did knock and i did try to ask for your permission. lastly, you have no idea where i came from! what if i had taken a bus here!? if i had to use the bathroom, i'd have had to walk 20 minutes just to get to the mcdonald's! 

he just gaped at me.

me: now, are you going to unlock the door and let me leave or do i have to call the police and tell them that you're holding me here against my will!?

him: fine then! get the fuck out of here and never come back!

he unlocks the door and shoves me out of it. i tripped on the curb and scraped my elbow.

me: why the hell would i ever come back!?

he slammed the door shut so hard that i was amazed that the glass didn't shatter. and with that, i stomped away until he couldn't see me anymore, and then, because i didn't know what else to do, i started laughing hysterically as i made my way back to the store i started at. i went back into the store, finished doing my shopping and then went home.

so, the morals of this story are: #1. never piss off people that work in denture clinics. #2. never pass up a chance to use a public bathroom. #3. always keep an imodium pill with you at all times.

TIFU by not needing dentures.