2013-02-21 - edit:
Added shadows, changed the font and speech bubble, re-scaled both ponies.
Comment on the edit: This is one of my first mlp "comics" made of vectors I found in MLP-VectorClub galleries. I actually considered to delete this, but... instead I decided to make it look a bit better.
Yeah, yeah, another 'plot joke'.
Made in GIMP.My another "Pinkie logic" comic: [link]
Following vectors were used:
Sugarcube corner background [link]
by TheLastGherkin [link]
Pinkie Pie vector [link]
by Quanno3 [link]
Unamused Twilight Sparkle [link]
MLP belongs to Hasbro and so on.