Rosie grumbled as she trotted through the trees, unaware that she had just strolled straight into the Everfree Forest.
"Stupid idiots," she muttered to herself, kicking over a flower and releasing some odd substance. "Don't they know better than to go rubbing her in my face? Oh, how I want to strangle that stupid mare..."
She shook her head and punched herself, knocking the crystal pony over. She leaped back up, her mane fluffier and her eyes lighter.
"It was about time for you to shut up," she murmured. "You've been at it for hours, Rose. Just calm yourself and go to sleep. I'll take over for now."
To any other pony, the fact that the mare was having a conversation with herself would have made them steer clear. For anypony who knew her, however, they would celebrate, for Rose had Multiple Personality Disorder, and this ponysona was the happier one.