A/N: The difference between how Donnie talked to Barksly (the stuffed dog) and how he talked once he knew Splinter was there...Anyway, uh, here's this. I wrote it while reading a certain book...see if you can guess it!

Disclaimer: If I owned turtles...Hehe...

Chink. Chink. Chink.

Whiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiir...

"Mikey, put whatever that is away before I break it," Raph growled as he fed Spike a piece of lettuce he found in the fridge.

"That wasn't me." Mikey glanced up from his coloring at his brother before adding, "I'm just coloring down here. Maybe it's Leo's show."

Chink, chink, chink.

Whiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiir...

This time when Raph heard the noise, he realized it was behind him. Hmm...and the faint giggling sounded like Donnie...

"Anyone seen Donnie?" The other two boys in the room looked around a moment before shaking their heads.

"I think he may be in his lab..." Mikey answered after a moment. "He found something out in the sewer earlier and wanted to work with it."

Chink chink chink.

Whiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiir...

Yep, definitely was coming from the area of the lab.

"I'm gonna go check on him." Before anyone could protest, Raph had Spike on his shoulder and was up on his way to the lab.

"Donnie? You alright in here, bud?" Instead of a real answer, he got more of the giggling in response.

The older mutant peaked in to see what was going on, and he was quite surprised to see his little brother sitting on the floor with Barksly in his lap while watching something. After a bit the sound died out, and Donnie reached out to grab whatever he had been watching: a toy mouse.

Donatello turned it in his hands a bit before twisting something on the side of it-

Chinkchinkchink

-and putting it back on the ground.

Whiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiir...

So his genius brother found a wind-up toy. It was actually kind of cute to see Don play with something rather than taking it apart or reading a book. Donnie was acting like a kid.

Perhaps he could leave him for a bit...

A/N: They're all aware there's something up with Donnie...I'm currently working on the chapter where Don figures out what's going on (day 19-ish). Of course, you guys don't get to learn with him...*evil laugh*

Anyway, love y'all!