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: hey guys, what's up? i'm fairly new to reddit, let alone this subreddit in particular. having only just discovered it the other day, i've been thoroughly enjoying myself reading everybody's fuck-ups. looking back on my 21 years of life, i can recall a large quantity of mishaps that would qualify a mention amongst the other hilarious stories in this subreddit. so without further ado, here's one of my most memorable tifu's. although the fuck-up didn't happen today admittedly, it will forever remain a recent memory; imprinted in the forefront of my mind with utmost clarity.

so i'm a nail biter. i'm always biting my nails, whether i'm at work, at home, masturbating, in the bath, playing video games, i'm always biting my nails. so one evening (i believe it was a saturday) i'm sat at my computer playing battlefield, when my arsehole starts ringing with this most almighty itch beyond comprehension. any more itchy and it'd probably have just automatically prolapsed to relieve the pain. so as a result, i let go of my mouse as quickly as you can yell "wriggling anal worm", inserting my index finger straight into the unknown depths of my sphincter. 

now for anyone who's not well-versed on anal worms, people who bite their nails are far more likely to contract them. a vast array of dirt, germs, and god-knows-what can linger on the underside of your nails, and as punishment for biting them, worms are born! so i'm sat on my chair in an awkward position, vigorously fingering myself in hopes the itch will subside. once i'm done, i release my finger from my anal cavity, and bring it towards my face. as suspected, amongst a couple of curly hairs on my fingers, are these two or three miniature white penis-shaped specimens going about their business. this isn't the first time this has happened, and being the filthy bastard that i am, i simply shrug it off and wipe my finger on the underside of my computer desk. 

fast-forward to a couple of weeks later. here i am again, sat at my desk; eating pizza (or something equally unhealthy). i manage to drop a slice of pepperoni on the floor, and hastily scramble to pick it up. so i bend down whilst still sat at my seat, gripping the side of my desk with my hand. i pick the slice up with my other hand, and proceed to eat it. shortly after, i begin to play video games again; when i begin to feel this 'presence' on my finger. at this point i've got bullets flying past my head, explosions going off nearby - all of my attention is on the action in front of me. 

this is where i make the worst mistake of my life. one hand's on my mouse, shooting at enemies in the distance, and the other hand has just been inserted into my mouth. i absent-mindedly scrape off whatever's on my finger with my teeth, and... bite down. i hear this crunch, and immediately i know what it is. time slows down, i gently take my finger out of my mouth, and observe the half-eaten worm resting on my saliva-covered finger. 

i jolt upwards, lean out of bedroom window and almost vomit attempting to rid myself of the other half of the worm currently resting on my tongue.

moral of the story? don't.. under any circumstances.. bite your nails. if you absolutely positively have to bite your nails, don't swallow them. if you absolutely positively have to swallow them, don't eat the offspring. please.

TIFU by accidentally eating one of my crusty anal worms