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: my girlfriend and i have been dating for a year as of dec. 15. she has a child that turned 1 in oct.   

since we've been dating, i've grown extremely close to her child. he calls me dad, and i wouldn't have it any other way. he is now the reason for each breath i take.  

ok, so enough background.  

a few days ago, she asks me if i would be able to (or even want to) watch him while she was at work. of course i said yes. however, i've never watched a child all alone before. this literally scared the shit out of me, but of course i didn't tell her this. it was my chance to prove to her, and myself, that i could handle this!   

fast forward a few hours, now she's on her way to my house. i've literally baby-proofed everything in my house(or so i thought). by this point, i've already started-chain smoking, because i'm so nervous. (terrible, i know.)   

ok, they're here! this is it! now or never! so, she leaves him with me. it's just me and him. we're doing great so far! 

fast forward a couple hours: time to change my first diaper! *complete* hey, that wasn't too bad at all!   

the day is coming to an end. it's time to put him to sleep now. we've almost made it!   

**here's where it gets interesting.**  
so, i manage to get him to fall asleep pretty easily. i get his little pack-n-play (portable crib thingy) setup. i proceed to put him in there, without him waking up! yay!   

now, in my house, i don't have central heat/air. i use space heaters to keep warm. (not a big house, and i don't get cold easy.) so, i figure it's a little chilly for him in here. i decided to turn on the space heater, and kind of move it closer towards him so he would be comfy. everything's perfect! our first time was successful!   

*until it happened.*  

i go outside to take a smoke break. leaving the child inside. no big deal, right? right!   

so, i'm outside smoking. he's fast asleep. then, all of a sudden i hear screaming, crying. i take off running inside...   

oh my god! fire!!   

he had woken up while i was outside, managed to knock a lamp over. the lamp then hit the space heater. the space heater landed on some clothes, and stared a fucking fire!!   

i got the fire put out pretty easily, and grab the child, and make sure he's ok. he's fine!  

most of my clothes, and the carpet are ruined. the lamp is broken, i almost died of a heart attack, and could have killed my girlfriend's child. other than that, everything is a ok.

TIFU while watching my girlfriend's child by myself for the first time.