Re: Supernatural Season 9 (Spoilers)
We all know why dogs are here. They are here to aid humans in their never ending battle against cats and their attempts to subjugate mankind.
"They have to help the viewers let go. Firefly did a movie to wrap things up. Buffy the Vampire Slayer continued on as a comic book. Heroes gradually lowered the quality season by season until we were grateful it ended.” - Sheldon Cooper