What a silly question! Welcome to the family, Fluttershy!

@Background Pony #3E21  
Of course, well, I’ll try to be a good father. ^^

Axe kick.

I’d take her in.

@Turbotowns  
Hopefully with a happy ending

Genuflect.

Write a letter to Santa apologizeing for not believing in him all these years.

Take her in

I’d take it inside and pick up the phone, dial the operator, and say “GET ME THE PRESIDENT OF SCIENCE!”
 
Then when the president of science is on the phone I’d tell him I may have found a living, breathing animation. And that he should come by RIGHT NOW so we can discuss it.

Well, I’d start by having a heart attack. We’ll see where things go after this.

My god! Come here you, we need to get you warmed up. I’d re-enact “My little Dashie”, except it’d be “My Little Flutters” X3

Obviously I’d pull some sort of dick move because I have no soul.

Punt. Bet I could get pretty good distance.

@Background Pony #3E21  
What?

Send it to someone who actually likes Fluttershy.

Make sure she’s comfortable in her new home!

@SunnySide
 
@Xamrin
 
@The Floor Kippers
 
What the fuck

Throw away the mushrooms.

Step on her.

Take it in temporarily, then see if I could hand it off to someone who a) could actually raise a flying equine and b) wouldn’t hand it over to scientists.

Take her in. I can’t just leave her out there!

I’ll teach her not to shit on the rug.

I have no idea how to raise a baby flying horse.
 
But I’d feel compelled to try.