“Ah am tired of your irresponsibility, young filly!” Applejack shouted at her sister. “You took our cart for market day and tried ta turn it into some kinda Ah don’t even know what—"
“We were hoping to get cutie marks in building parade floats!” Apple Bloom protested. “We didn’t mean for the cart to get all smashed up!”
“You fillies ruined all of Rarity’s perfumes—"
“Um, yeah. Cutie Mark Crusaders Perfume Mixers didn’t work out real well, I admit—"
“You nearly burned down Sugarcube Corner—"
“But Pinkie Pie said it was ok for us to try to get our cutie marks in baking!”
“She didn’t say it was okay to try to bake explosives into the cupcakes!”
“It was just fireworks…”
“Ah have had it up to here with your shenanigans, young missy! Over and over again you and your friends near-on wreck Ponyville, and all you ever have to say for yourself is ‘Ah’m sorry, sis, we were jest tryin’ ta get our cutie marks!' Well, you don’t get to wreck everypony else’s life jest because you want ta get yer cutie marks, ya understand?”
“I—I understand, sis.” Apple Bloom tried not to cry, not too successfully.
“Ah don’t even know why Ah bother. We have this argument again and again and you never change yer ways. Ah’m beginning to think you can’t change, Apple Bloom.”
“I can! I can so!” Apple Bloom wiped her hoof across her face, blotting away the tears. “Give me a chance, sis! Let me show you how I can change!”
“Oh, this had better be good,” Applejack said.
A strange sound filled the air. The sound of whirring gears and clanking motors. Before Applejack’s horrified eyes, the small pony in front of her morphed, transforming with the sound of clanging metal into a tall bipedal robot. “See! I can change!” the Apple Bloom robot pleaded.
“Oh, Ah am so outta here,” Applejack muttered, and stormed off.
Apple Bloom called after her sister, pleadingly, “I can turn into a boombox as well!”
fwwwt