The Heights Alliance 1-A Dorms had five floors. Five floors of electrics, plumbing, and ventilation - all prone to malfunctioning due to housing twenty students with flashy, hazardous quirks.

An early example was when Kaminari fried the lights and his brain during a horror movie night (which, coincidentally, was also the last night that anyone let Bakougo and Ashido pick the movies). Another was when Sero accidentally taped a shower and ruined the plumbing - Izuku remembered that one well, since 1-B had been forced to house them for the week. Even Kouda managed to cause chaos, when he accidentally let a bat into the ventilation system.

Idly, Izuku had to wonder how they managed to hold it together at school, when they were all disasters in the dorms. Whilst some of his classmates were obvious firehazards (read: Kaminari and Bakugou), the dangers presented by people like Mina were far more subtle.

So, when Izuku found himself falling though a corroded floor, he half-heartedly cursed Mina... and yelped as he was wedged up to his shoulders in the gap, his feet dangling from the kitchen ceiling and arms pinned to his chest. He breathed in, dust flying around him, and forced himself to be calm.

There were a few muffled shouts from below, before the unmistakable yell of Bakugou.

"DEKU!"

Absently, he wondered how strange he looked to the others: pieces of floor board and a single red shoe on the ground (because Izuku definitely felt one slip off), a wriggling pair of legs poking out of the ceiling, and the charming sight of his shirtless chest, since he could feel the hem of it pressed against his elbows.

Wiggling his foot in greeting, a surge of deja vous overtook him. For a second, he was back in his room - swaddled in his blanket and staring at Iida's shoes...

Izuku jolted in shock as he felt someone grab his shoeless foot and tug, kicking out at them istinctually.

(At least it wasn't his boots, then he could have hurt someone...)

"Sorry!" he shouted, praying they heard him as he listened to Iida's quiet groan. "I panicked!"

He heard footsteps down the corridor and wiggled, screwing his neck around to observe Kaminari. Nodding in greeting, he gave the other boy a moment to admire how stupid he probably looked.

As he would later be told, he looked like a mole poking out of the ground: green, grass-like hair covered in sawdust and surrounded by the wreckage caused by Ashido's acid. At the very least, he knew he had smelled foul for several days afterwards, the amalgamation of acid, sweat, wood, carpet and a little bit of cement.

He felt like Mei, but less impressive nor intimidating, to summarise.

"If I were a lesser man," Kaminari began, eyeing his helpless little head, "I would totally get a permanent marker."

"Yesterday you drew a moustache on Kirishima when he fell asleep after dinner 'too see if it would become a real moustache when it hardened'." Izuku pointed out, feeling someone tug his foot.

The blond grinned, "A worthy pursuit in the name of science!"

Izuku cocked a brow.

"Okay but, like, it was funny. Right?"

"So why aren't you going to moustache me?" Izuku wondered, because, really, even Izuku wouldn't have resisted. The only person he wouldn't marker-moustache was Bakugou.

"... Bakugou has, uh, liberated my marker collection," Kaminari rubbed his neck, "So do you want me to get you help or something?"

Another tug.

"I think the others have got it covered, but thank you!" He grinned, feeling his shoulders drop further through the floor.

"Alright, man, but shout if you-- Holy-- Midoriya?!"

A yelp and a tug saw said boy tumble through the floor as if struck by a whack-a-mole toy, landing haphazardly on top of Iida.

He moaned and held his head, rolling off the boy and onto the ground. Mole, indeed... he wanted to bury in the earth and sleep away the combined pain and embarrassment.

"I blame Ashido entirely and refuse to be responsible for this," he mumbled. "She can tell Mr. Aizawa this time."

Kaminari laughed gleefully, peering through the hole in the ceiling like a child opening a present on Christmas morning, and even Bakugou cracked a grin at his grumpy defiance.

Iida said nothing, but offered Izuku a hand, "You are rather prone to getting stuck, aren't you, Midoriya?"

Izuku simply groaned, taking his hand, "I haven't gotten stuck so often since... junior school, I guess."

Bakugou shoved past him, "Don't forget your shoe, nerd." he grouched as he left the kitchen, sporting a strangely shaped bruise on his forehead.

(Did his shoe...?)

He plucked the aforementioned object off the ground and hastily stuck it back on, ignoring the stray blond hair on the sole. Afterall, if Kaachan wasn't saying anything, he wasn't going to antagonize him.

"Should we stick a warning up here, do you think?" Kaminari called down, "So no one else gets stuck?"

"If they haven't already heard about it, then probably. But getting stuck seems to be good gossip, so everyone will probably be aware of it by breakfast."

Iida shook his head at Izuku, so his answer was probably not the moral high ground Iida was expecting... but he was completely fine with that, at this point.

"Stick a sign or cone up there, please, Kaminari!" - ah, there was the morally-appropriate response.

The green-haired boy sighed; he could be a hero after breakfast, Izuku decided.

With that, he waved the others off and went to search for a clean shirt and a shower.