Nightmare Moon roared. "THE TIME HAS COME! THE LEAKS WILL NEVER END! YOU WILL ALL KNOW MY MISERY! BOW BEFORE YOU-"
Nightmare Moon stopped. "Wait... the dripping... it's stopped...it's FINALLY stopped!" Nightmare Moon burst out laughing. "It's stopped! Finally! Yes yes yes yes! That horribly annoying noise is gone!" Nightmare Moon giggled and rolled about on the floor, exploding in a mass of dispelling darkness leaving only Princess Luna. "Who has done this!? Who is the savior of Princess Luna?!"
"OH! That would be me!" Said a purple unicorn with a plunger for a cutie mark. "I'm Toilet Sparkle, janitor of Celestia's School For Gifted Unicorns...I checked out the Castle of Two Sisters, and was surprised to find a working plumbing system left over from the Age Of Wonders..."
"You fixed my leaky facet from our royal water closet!?" Princess Luna asked eagerly, the crowd of ponies in confusion and bewilderment.
"Sure looks that way," Toilet Sparkle shrugged.
"OH THANK YOU! YOU HAVE SAVED EQUESTRIA LITTLE PONY!"
"Just doin' my job! Plumbing is magic!"
"And you said there couldn't possibly be a universe where you're a plumber!" Starlight said with grin looking through the magic mirror.
Twilight grumbled and gave Starlight the five bits. "Still boring if you ask me. No personal growth for anypony, no forming bonds through ordeals, no Luna being turned into a filly to reexamine herself for a year... Not very satisfying if you ask me."
Starlight shrugged. "Well, I doubt they'll complain."
"Only because they don't know what they missed."
"Like your friends in Canterlot not knowing they could have been immortal goddesses and saviors of Ponykind if they'd been with you on that trip to Ponyville?"
Twilight broke out in a cold sweat. "Uh.. perhaps some things are better left unknown!"