"Twilight, let me tell you what I thought..." Discord sighed.
"Yes?" Twilight excitingly asked. She couldn't wait to hear how good her prank was.
"Twilight, your joke was like a newborn foal just being born and trying to walk. While very eager, it is a pointless try for that young filly to do."
The smile dropped off of the purple alicorns face. "What?"
"That joke you did... It was like a whoopee cushion being placed on a chair, yet it didn't even make a noise when your target sat down. It is like a pony that attempts to run a marathon when they only have three legs."
Twilight just sat opened mouthed as the spirit explained his feelings. "But, what do you-
"Hold on a second, I wasn't finished..." He cut lher off, "Listening to you explain your prank was like having to sit down and listen to you explain your story was about as entertaining as having to talk to Pinkie Pie about what kind of cupcakes she ate a week before. Hearing you talk about how good your joke was as boring as listening to the somehow hit song "filly" over and over again."
"What do you mean?" The purple alicorn questioned, "what do these things have to do with me?"
Discord raised an eyebrow at the young pony. "Obviously you didn't understand a single metaphor that I said just now." Sighing, he sat up straight in his seat. "To keep it simple... Your prank sucked."
"What!? Why was it bad?" Twilight frowned.
"You did something so simple and plain."
"But what's wrong with that? Not all jokes have to be so crazy and mean."
The spirit cast a large grin at her statement. "Oh? So you are saying that is the only joke you are going to do on Luna after she blasted you through the ceiling?" Twilight was about to say something, but stopped herself when she thought more about what happened. Discord instead began talking for her. "I see you have the want to try and get even, but unfortunately... You lack the skill. If you want, I can show you how to do a good prank."