Princess Celestia: I'm fully aware that the last time Discord was here, he created serious havoc.
Rainbow Dash : If by "serious havoc," you mean turing Ponyville into the chaos capital of the world.
Rarity: And tricking us all into being the opposites of our true selves.
Pinkie Pie: And making yummy, delicious chocolate milk rain all over the place without a single dollop of whip cream to go with it anywhere in sight. Not a single dollop!