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 this actually happened about a week ago when my girlfriend and i moved into our new place.

we had just finished consummating our new home and smoking a celebratory first house blunt when we decided to go smoke a cigarette. now, going outside is something we never had to do before to smoke a cig. we'd just open a window in the apartment we used to live in and smoke inside. this being the first night at the new place we hadn't properly learned all the locks and what not on the doors. mainly the doorknob locks. never had those before at the apartment, just bolt locks. so happily we go outside in our pjs, me in gym shorts and a crappy white tshirt i had on for most of the day, and her in capitals boxers with an expressions of darth vader tshirt on. both in flip flops. as soon as i shut the back door i knew i had fucked up as i could feel how the knob was locked literally a second too late. i turned to my girl with a look of terror and she knew immediately that i had just caused a first homeowners mistake and locked ourselves out of our house...in our pjs...at midnight...both cell phones upstairs in the bedroom...at about an [8]. we tried all the windows, which were locked, and contemplated breaking a window (as she put it, we have a year to fix it so whatever). of course we ended up deciding to just suck it up and go to a neighbors house, none of which we had met yet. she suggested i go by myself as she was embarrassed to which i responded there's no way in hell anyone in their right mind would open their front door for a guy that looks like me (big beard, big guy, in pjs) at midnight and that having her was essential to getting someone to let us use their phone. 

so we started knocking. we got through about three houses before finally someone opened their door for us. it was a nice asian man and what i presume was his just woken up by our knocking grandma or mother who didn't speak english. i should mention he didn't speak english very well either so it took about five minutes of explaining why we needed his phone and that yes, we really were his neighbors. luckily he had seen our moving truck and believed us.  the whole time they're just staring at my girlfriend probably due to the mix of funny clothing, sex hair, stoned eyes, and no bra while i frantically call my dad so he can bring the spare key out (for the life of me i don't know what made me make an extra earlier that day at home depot, but it saved our ass). after hanging up we thanked him, rosy cheeked and all, as we went to leave. he offered to let us hang out there until my father came but we were way too embarrassed to sit there any longer. my dad decided it was hilarious so he went and picked my mom up and bought some coffees (all the time we're outside in pjs like where the fuck is he?!) to bring over. he was giggling and doing a little dance as he walked up to the house, i guess he thought it was funny as hell (we did too honestly, i'm sure the weed helped). all in all it turned out to be a pretty funny experience, and not gonna lie, i did it again a day later but luckily we had our phones and my dad was close by so we didn't have to go through anything embarrassing again. needless to say we have a hidden key now, but we never lock the doorknob lock anymore anyways. now every time i call my dad he starts off by answering with "please, not again." honestly, i can't help but laugh and think of how awesome a story it is for our first night living together. oh, and the house is fucking awwwwesome!

Tifu by locking my girlfriend and I out of our new townhouse...at midnight.