A/n: This contains a couple of events based on elements from one of the stories by 'fireworksinthenight'. Not gonna tell which story though, you have to read till the end to find out.

Disclaimer :

I don't own the turtles.

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Doctor Doctor

"Needle."

An olive green hand appeared, palm up. A needle with a line of thread was placed on it and it retreated back, it's owner shown wearing a surgical mask.

The turtle's eyes were narrowed in intense focus, a drop of sweat running down the side of his face.

"How is she, Doctor Donatello?" The owner of the voice sounded worried and scared, holding a tray of tools.

"I'm not quite sure, Nurse Michelangelo. She is in critical condition, I'm afraid." He removed the mask, throwing it to the side and held out his hand towards the sea-green turtle.

"Stethoscope."

"Steto- what now?"

The genius sighed.

"Just hand me that long doctor thingie I made last week."

"Oh! Here."

After using the stethoscope, he removed it and hung it around the back of his neck.

"Scissors."

"Here you go, Doc." The object was placed in his hand and he used it on his patient lying on the medical table. He placed the scissors back on the tray and frowned sullenly.

"Nurse?" The orange-masked tutle stood straight, ready for the next order. "Bring the other tools."

"Do we really need to use them, doctor? They are quite dangerous and painful."

"I believe we have no choice, nurse. She might die if it's not done."

Michelangelo sighed sadly, trudging to the back of the lab and came back after a moment, holding a red metal toolbox with the words 'Donnie's Box' written on it. He placed it on the medical table beside their patient.

Donatello clicked the latch open and took out his soldering iron. Moving to the other side of the table, he turned the tool on, bringing it closer and closer to the patient. Mikey gulped and covered his eyes, blocking out the soon-to-be-gruesome view.

After a few intense minutes, Donnie turned off the tool in his hand and stepped back, wearing a relieved smile.

"Mikey, it worked!"

"Really?"

"Yes! See for yourself!"

Mikey dropped his hands from his eyes and stared at the medical table, an opened toaster with fixed wires lying on top of it.

"You did it! Well done Doctor Donatello!"

"I must say, I couldn't have done it without you, Nurse Michelangelo."

Saying that, he pulled his toolbox, sliding it towards himself and opened it, taking out a few pieces of small contraptions and copper wires. Dropping those objects on the table beside the toaster, he rubbed his hands in glee with an evil glint in his eyes.

"Now, time for a little tweaking."

"Uh... Donnie? What are you gonna do with those?"

Donnie paused in his movements and stared at Mikey for a moment before he shrugged, turning his attention back to the toaster.

"These? They are just some implementery motion sensors and facial feature recognizers so the formulated contraption which will be installed in the toaster could cause it to short circuit that will result in it's detonation if a certain individual approaches the vicinity of the appliance."

Mikey blinked, not understanding a word his brother had said.

"Ookay?"

Donnie turned his head to the side to hide his smirk. Using complicated vocabulary to confuse his brothers worked every time.

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In the living room of their lair, beside the pool of water, eight year old Raphael and his elder brother Leonardo were sparring.

Punch

Dodge

"Nice work beating Donnie in morning training, Leo-"

Kick

"-you totally rubbed the floor with his face."

Block

"I don't know, Raph-"

Side step

"-I feel a little bad for hitting too hard. He looked embarrassed... and mad."

"You worry too much. It's not like he'd go crazy to take revenge or anything. I mean, what could possibly go wrong for winning a training session?"

"Yeah... "Leonardo sighed, blocking a strike with his arm and delivering one of his own,

"I suppose you're right."

" 'Course I'm right."

As Raph jumped to dodge a leg sweep from Leo, a loud 'Mad Scientist laughter' rang throughout the lair, originating from their younger brother's lab.

They both halted their attacks, throwing confused glances towards the origin of such noise.

"What was that all about?" Raph questioned his elder brother, still staring at the lab's doors.

Leonardo shrugged, "He's Donnie. Who knows what he is up to?"

Donnie's crazy sounding voice came through the doors once again, loud and clear.

"YES! YES!...SHE LIVES! MUAHAHAHAHAHAHA! Rise my creation! RISE! Hahahahahahahah!"

Both brothers were looking at the huge metal doors with wide eyes, their sparring completely forgotten now.

"On second thought, I don't really wanna know what he's doing."

"Yeah... me neither."

Leo tentatively took a step back, and then another, and then another, Raph silently doing the same.

They slowly walked backwards towards the turnstiles, away from the source of scary, evil laughter.

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A/n: This was suppoed to be a fluffy oneshot based on one of my own head-cannons: Donnie and Mikey used to play Doctor and Nurse when they were younger. It was their secret game. But when I started writing it, an idea clicked and I couldn't ignore it so this was written as a result.

By the way, the elements used are from the second one-shot of the book "Because fandom says so" by 'fireworksinthenight'.

Note to everyone: Never mess with Donnie. He is dangerous.