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: (note: i am not ~~mother tongue~~ a native speaker, so forgive me for any mistake)

hello reddit. this is my first post in tifu but i think my story definitely belongs here.

one month ago it was my birthday, my 30th birthday (milestones in life!).
the night before it i went out with a dozen of friends and we jumped from bar to bar until we end up almost at midnight quite drunk, sitting next to a monument on some big staircases.

they pulled out a bottle of wine to celebrate my birthday properly. we toasted and it was really cool.
at that point two of my friends started to get childish, jumping from step to step like monkeys. we were drunk, i can tell you that.
my mind got short circuited at that moment and i decided to show off my physical abilities (i have none, but when you are pissed there is no way to remember that.)
so i walked away 10mt (~30ft) and i prepared myself for the trick.
*remember, every step was around one meter high (~3ft) and made of marble.*
i started running towards the stair and i jumped over the first step.
not a big deal, but i did it!

guess what? i was not satisfied.
if i can do one step, for sure i can jump two of them.

so again i turned around and i got a longer running start.
i could not even jump the first step, i got my knee directly on the edge of the step. buuum.
i did not feel pain at that very moment. but something told me it could be better to stop.

after half an hour most of the people went back home, i stayed around with few of them a little bit more, drank two more beers and in the end i went back home myself.

when i was in my bathroom taking a piss i noticed my left shoe was covered in blood.
wtf?!?
my pants were black denim that night, no way to see the blood.
so i got my pant off to discover my knee was completely red, covered in blood, as all my leg to the shoe.
i cleaned myself up, put my pants in cold water (my god they were crispy) and cleaned the wound (which looked like a canyon).

after that i went to bed like if it was a stupid cut.

in the morning i woke up and my bedsheets were like a dexter episode and my knee was hurting.
it was my birthday.
my 30th birthday.
 
so i went to the er ending up being a green tag (nothing serious, just wait until you don't get spiderwebs on your face).
it took around 6 hours to be treated. luckily for me there was no fracture at all, just got 5 stitches and an earful from the doctor because i waited all night.

now everything is better, no more stitches and i walk again like a normal person, but i still feel like a complete idiot and i know it could end up much much worse.

at the end of the day i can say that *i used to be an adventurer like you, but i took a marble on my knee*.
**welcome to my 30s**
http://imgur.com/gallery/lvfjxnr [nsfw]

TIFU by hurting my knee and ending up at the hospital on my 30th birthday (aka "I used to be an adventurer like you...")