"MWA HA HA HA HA!" Sunset Shimmer cackled as she came out of the magic mirror, a red saddle bag on her back.
"At last!" Sunset said with devilish glee as she pulled out her plans from the bag. "I will have my revenge upon that white-ass bit-"
A bang went off. Sunset was startled by the noise, but her shock gave way to excruciating pain. She fell to the ground with a pained moan and saw that her right front hoof was bleeding out. "A gunshot," Sunset said with horror. "But they don't have guns here in Equestria-"
"I do now," a voice said. Sunset looked with horror as her former mentor approached her, a gun floating in her magical grasp. "Hey, Sunny," Celestia said with a casual tone. "How are things?"
"How did you know I was gonna be here?" Sunset asked with growing terror.
"I have the schedule for when the portal opens," Celestia said dryly, unimpressed that Sunset would think she wouldn't figure out the days when Sunset could sneak back. "Anyone with a sixth-grade education could figure it out!" She used her magic to level her gun at Sunset's head.
"Please don't shoot me," Sunset said fearfully. "All those threats to seize power and murder you were just jokes to cope with my parents leaving on vacation for three days with only a babysitter to watch me." Sunset put on puppy-dog eyes. "I always loved you deep down."
"The last thing you said to me was that you were gonna boil my hooves into glue and mount my head on a wall," Celestia said casually, her grin no longer reaching her eyes.
"T-that was just a phase," Sunset said. Celestia opened Sunset's saddlebag, pulled out a notebook, and read it.
"You wrote 'when I conquer Equestria, I will boil Celestia's hooves into glue....84 times on one page in this notebook alone," Celestia observed nonchalantly. "Complete with numerous pictures of my head mounted to a wall with a bloody cleaver in your hoof."
"Artistic expression," Sunset said feebly. "I promise to make it up to you. I-I'll...make an effort to promise to mop the bathroom floor once a decade."
"OK, you're free to go," Celestia said in a relaxed tone. Sunset limped away, her hoof still bleeding. She looked proudly at her pistol. "This thing is a beauty." She spun it around, only for it to accidentally discharge. She heard a slump to the floor in the hallway.
Celestia tepidly walked out into the halls and saw Sunset's body bleeding from the head, her blood flowing onto a nearby tablecloth.
"NO!" Celestia said in agonized despair. "What have I done?!" Celestia tearfully bent down and picked up the now reddened tablecloth, throwing Sunset's body away as if it were a ragdoll.
"My poor tablecloth," Celestia said mournfully. "Don't worry, baby. I'll get you to a doctor." Celestia ran out of the room, cradling the poor linen like it was her child.