Anyone else remember when, Pinkie popped up in that mirror in "Green Isn't Your Color" (when Twilight let slip that Spike has a crush on Rarity in front of Photo Finish, breaking the Pinkie Promise she made)? Does anyone else get the feeling that, the Pinkie in this mirror could be that Pinkie??
Not saying that the last panel was an error but, pinkies the only character that you can do a comic with and if you manage to slip up, everyone will just write it off as 'Pinkie being Pinkie' and it will actually add to the comic!
Well... no... because she is not stupid and know this is just a mirror... so she knew that she has to make the good night call! Sadly she doesn't see or know that the mirrorthing acts on his own! sry for my bad english... just try to speak it right.... so much stupid words i have to use!
PRAISE THE HELIX! Um... I mean, I thought the mirror gag might have been a simple ruse until I got to that last panel. It's interesting because Pinkie can manifest in the Mirror Dimension (canon via Green Isn't Your Color, I believe), which means there is clearly an alternate Pinkie elsewhere in that reality. Very possibly, this would fanonically explain inconsistent behaviors between episodes.