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: so obligatory this didn't happen today, but rather yesterday. i had to go to work to get away from the anger and hate. so my girlfriend and i live together with her 5yr old son. he spends the 4rth of july weekend with his dad. he comes home yesterday and i'm the only one home, girlfriend went out shopping. the kid is, to say it politely, not parented to the level i would hold my own kid to, and so there's always a struggle to get him to eat anything but pizza, chicken nuggets or ice cream. i am making dinner, something i thought he would like, pigs in a blanket, but he won't try it so that starts a problem. end up just cooking him frozen pizza and my girlfriend gets home and immediately lays into me about watching a movie on my ipad while i cooked. that's a whole other issue, but she feels i'm "addicted" to my ipad because i use it to read, watch shows, email...

ok, the fuck up. her son starts to throw one of his daily tantrums about something. in the middle of this he just throws a piece of his pizza across the room. then when told to clean it up, refuses, until his mom drags him over to it, where he proceeds to throw it again, then laugh about it. i told him if he's going to do that, he needs to go in his room, where he proceeds to open his playbook of shitty behavior and starts to fake cry and say "i don't want you to talk to me". i, who know you don't bargain with kids, told him he should go to his room. he then throws himself on the ground and is wailing. i go " does your dad let you act like this?". and he says "my daddy lets me do what ever!". i reply, " well then he's a bad dad." kid lost his shit, real crying, rushes off to his room and slams the door. this kid idolizes his deadbeat loser father for what ever reason and my gf is pissed at me and now this whole event has caused him not to want to live with his mom because i'm here. i essentially ruined a relationships for speaking my mind to a 5yr old. i slept on the couch after hours of yelling, kid got to go stay with his dad for a while, and this morning my girlfriend told me to start looking for apartments. reddit, i done fucked up.

TIFU by telling my GF's 5yr old that he has a bad dad.