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: obligatory this didn't happen today, it happened two days ago but i only just realised this might get a few laughs on here.

so i was sitting in chemistry with my friends... lets call them miles, nev and rick. i've known miles for a few years, so he's seen when i've had moments like this in the past - nev and rick have just joined our school a few weeks ago, so are blissfully unaware of my reputation.. or were.

anyway, it was a minute or so before our teacher started the class, but everyone was just sitting and talking. miles had started joking about tentacle hentai, so i tried to steer the conversation to something less disturbing.. somehow it got to the oedipus complex. rick took psychology a level, so he was playing the expert, asking if we knew what it was (we did - thanks internet!) and then why it was called what it is.

i piped up with, "it's named after the greek story of oedipus," because i used to be big into my greek mythology... and couldn't remember how the story actually went.

now, it's important to note that up until this point, the rest of the class had been talking fairly loudly, and the teacher had been milling around at the front of the room, so we weren't exactly whispering. just as the class begins to quiet down and the teacher starts getting peoples attention, rick asks if i know how the story goes, and of course, once everyone is silent, i reply, oblivious to the volume of my own voice.

the silence is shattered by, "i don't remember, but basically he fucked his mum."

i realise as i say it just how loud it is. miles is almost crying, and the teacher is giving me the dirtiest look. i fucked up.

TIFU by talking about Oedipus in class